diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..c3f5291
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,9 @@
+{
+  "tabWidth": 2,
+  "printWidth": 140,
+  "semi": true,
+  "trailingComma": "all",
+  "singleQuote": true,
+  "bracketSpacing": false,
+  "parser": "typescript"
+}
diff --git a/README.md b/README.md
index f6336f7..a3f4bc8 100644
--- a/README.md
+++ b/README.md
@@ -11,11 +11,18 @@
   export GIT_JIRA_URL=your_jira_hostname_with_port
 ```
 
+# Uninstall
+Run `./uninstall path/to/project/root`
+
 # Usage
 The tool uses [prepare-commit-msg](https://git-scm.com/docs/githooks#_prepare_commit_msg) hook,
 so all you need to do is just `git commit` as usual.
 
-> For performance purposes, the script fetches only *unresolved* issues *assigned to the current user*
+> For performance purposes, the script fetches only issues *assigned to the current user*
 
-# Uninstall
-Run `./uninstall path/to/project/root`
+# Disable
+Set `DISABLE_GIT_JIRA` env variable
+
+```
+DISABLE_GIT_JIRA=true git commit
+```
diff --git a/install b/install
index a1d3515..866b2e9 100755
--- a/install
+++ b/install
@@ -19,6 +19,6 @@ const build = () => webpack(webpackConfig).run((err, stats) => err ? throwError(
 const copyFiles = (path) => {
   createReadStream(resolve('./dist/prepare-commit-msg'))
     .pipe(createWriteStream(gitHookPath));
-  chmodSync(gitHookPath, 0755);
+  chmodSync(gitHookPath, '0755');
 }
 path ? build() : throwError('no project path specified');
diff --git a/package-lock.json b/package-lock.json
index dac5407..9e29ead 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,10 +4,32 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@babel/parser": {
+      "version": "7.0.0-beta.51",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.0.0-beta.51.tgz",
+      "integrity": "sha1-J87C30Cd9gr1gnDtj2qlVAnqhvY=",
+      "dev": true
+    },
+    "@mrmlnc/readdir-enhanced": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz",
+      "integrity": "sha512-bPHp6Ji8b41szTOcaP63VlnbbO5Ny6dwAATtY6JTjh5N2OLrb5Qk/Th5cRkRQhkWCt+EJsYrNB0MiL+Gpn6e3g==",
+      "dev": true,
+      "requires": {
+        "call-me-maybe": "^1.0.1",
+        "glob-to-regexp": "^0.3.0"
+      }
+    },
+    "@nodelib/fs.stat": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz",
+      "integrity": "sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw==",
+      "dev": true
+    },
     "@types/node": {
-      "version": "8.0.47",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.0.47.tgz",
-      "integrity": "sha512-kOwL746WVvt/9Phf6/JgX/bsGQvbrK5iUgzyfwZNcKVFcjAUVSpF9HxevLTld2SG9aywYHOILj38arDdY1r/iQ==",
+      "version": "10.12.9",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.9.tgz",
+      "integrity": "sha512-eajkMXG812/w3w4a1OcBlaTwsFPO5F7fJ/amy+tieQxEMWBlbV1JGSjkFM+zkHNf81Cad+dfIRA+IBkvmvdAeA==",
       "dev": true
     },
     "acorn": {
@@ -22,7 +44,7 @@
       "integrity": "sha1-x1K9IQvvZ5UBtsbLf8hPj0cVjMQ=",
       "dev": true,
       "requires": {
-        "acorn": "4.0.13"
+        "acorn": "^4.0.3"
       },
       "dependencies": {
         "acorn": {
@@ -34,19 +56,35 @@
       }
     },
     "ajv": {
-      "version": "4.11.8",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
-      "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
+      "version": "5.5.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
+      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
       "dev": true,
       "requires": {
-        "co": "4.6.0",
-        "json-stable-stringify": "1.0.1"
+        "co": "^4.6.0",
+        "fast-deep-equal": "^1.0.0",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.3.0"
+      },
+      "dependencies": {
+        "fast-deep-equal": {
+          "version": "1.1.0",
+          "resolved": "http://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
+          "integrity": "sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=",
+          "dev": true
+        },
+        "json-schema-traverse": {
+          "version": "0.3.1",
+          "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz",
+          "integrity": "sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=",
+          "dev": true
+        }
       }
     },
     "ajv-keywords": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-2.1.1.tgz",
-      "integrity": "sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=",
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.2.0.tgz",
+      "integrity": "sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo=",
       "dev": true
     },
     "align-text": {
@@ -55,18 +93,11 @@
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
       "requires": {
-        "kind-of": "3.2.2",
-        "longest": "1.0.1",
-        "repeat-string": "1.6.1"
+        "kind-of": "^3.0.2",
+        "longest": "^1.0.1",
+        "repeat-string": "^1.5.2"
       }
     },
-    "amdefine": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
-      "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
-      "dev": true,
-      "optional": true
-    },
     "ansi-regex": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
@@ -79,27 +110,24 @@
       "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
       "dev": true,
       "requires": {
-        "color-convert": "1.9.0"
+        "color-convert": "^1.9.0"
       }
     },
     "anymatch": {
-      "version": "1.3.2",
-      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
-      "integrity": "sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-2.0.0.tgz",
+      "integrity": "sha512-5teOsQWABXHHBFP9y3skS5P3d/WfWXpv3FUpy+LorMrNYaT9pI4oLMQX7jzQ2KklNpGpWHzdCXTDT2Y3XGlZBw==",
       "dev": true,
       "requires": {
-        "micromatch": "2.3.11",
-        "normalize-path": "2.1.1"
+        "micromatch": "^3.1.4",
+        "normalize-path": "^2.1.1"
       }
     },
     "arr-diff": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
-      "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
-      "dev": true,
-      "requires": {
-        "arr-flatten": "1.1.0"
-      }
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
+      "integrity": "sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=",
+      "dev": true
     },
     "arr-flatten": {
       "version": "1.1.0",
@@ -107,13 +135,19 @@
       "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
       "dev": true
     },
+    "arr-union": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/arr-union/-/arr-union-3.1.0.tgz",
+      "integrity": "sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=",
+      "dev": true
+    },
     "array-union": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
       "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
       "dev": true,
       "requires": {
-        "array-uniq": "1.0.3"
+        "array-uniq": "^1.0.1"
       }
     },
     "array-uniq": {
@@ -123,26 +157,35 @@
       "dev": true
     },
     "array-unique": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.2.1.tgz",
-      "integrity": "sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=",
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
+      "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
       "dev": true
     },
-    "asn1": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
-      "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
+    "arrify": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
+      "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
       "dev": true
     },
+    "asn1": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
+      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+      "dev": true,
+      "requires": {
+        "safer-buffer": "~2.1.0"
+      }
+    },
     "asn1.js": {
-      "version": "4.9.1",
-      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.9.1.tgz",
-      "integrity": "sha1-SLokC0WpKA6UdImQull9IWYX/UA=",
+      "version": "4.10.1",
+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.10.1.tgz",
+      "integrity": "sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==",
       "dev": true,
       "requires": {
-        "bn.js": "4.11.8",
-        "inherits": "2.0.3",
-        "minimalistic-assert": "1.0.0"
+        "bn.js": "^4.0.0",
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0"
       }
     },
     "assert": {
@@ -152,21 +195,44 @@
       "dev": true,
       "requires": {
         "util": "0.10.3"
+      },
+      "dependencies": {
+        "inherits": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
+          "integrity": "sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=",
+          "dev": true
+        },
+        "util": {
+          "version": "0.10.3",
+          "resolved": "http://registry.npmjs.org/util/-/util-0.10.3.tgz",
+          "integrity": "sha1-evsa/lCAUkZInj23/g7TeTNqwPk=",
+          "dev": true,
+          "requires": {
+            "inherits": "2.0.1"
+          }
+        }
       }
     },
     "assert-plus": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz",
-      "integrity": "sha1-104bh+ev/A24qttwIfP+SBAasjQ=",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
+      "dev": true
+    },
+    "assign-symbols": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
+      "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=",
       "dev": true
     },
     "async": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.5.0.tgz",
-      "integrity": "sha512-e+lJAJeNWuPCNyxZKOBdaJGyLGHugXVQtrAwtuAe2vhxTYxFTKE73p8JuTmdH0qdQZtDvI4dhJwjZc5zsfIsYw==",
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz",
+      "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
       "dev": true,
       "requires": {
-        "lodash": "4.17.4"
+        "lodash": "^4.17.10"
       }
     },
     "async-each": {
@@ -181,26 +247,32 @@
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
       "dev": true
     },
+    "atob": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
+      "integrity": "sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==",
+      "dev": true
+    },
     "aws-sign2": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.6.0.tgz",
-      "integrity": "sha1-FDQt0428yU0OW4fXY81jYSwOeU8=",
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
+      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=",
       "dev": true
     },
     "aws4": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.6.0.tgz",
-      "integrity": "sha1-g+9cqGCysy5KDe7e6MdxudtXRx4=",
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
+      "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==",
       "dev": true
     },
     "babel-runtime": {
-      "version": "6.25.0",
-      "resolved": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-6.25.0.tgz",
-      "integrity": "sha1-M7mOql1IK7AajRqmtDetKwGuxBw=",
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-6.26.0.tgz",
+      "integrity": "sha1-llxwWGaOgrVde/4E/yM3vItWR/4=",
       "dev": true,
       "requires": {
-        "core-js": "2.5.1",
-        "regenerator-runtime": "0.10.5"
+        "core-js": "^2.4.0",
+        "regenerator-runtime": "^0.11.0"
       }
     },
     "balanced-match": {
@@ -209,20 +281,80 @@
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
       "dev": true
     },
+    "base": {
+      "version": "0.11.2",
+      "resolved": "https://registry.npmjs.org/base/-/base-0.11.2.tgz",
+      "integrity": "sha512-5T6P4xPgpp0YDFvSWwEZ4NoE3aM4QBQXDzmVbraCkFj8zHM+mba8SyqB5DbZWyR7mYHo6Y7BdQo3MoA4m0TeQg==",
+      "dev": true,
+      "requires": {
+        "cache-base": "^1.0.1",
+        "class-utils": "^0.3.5",
+        "component-emitter": "^1.2.1",
+        "define-property": "^1.0.0",
+        "isobject": "^3.0.1",
+        "mixin-deep": "^1.2.0",
+        "pascalcase": "^0.1.1"
+      },
+      "dependencies": {
+        "define-property": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/define-property/-/define-property-1.0.0.tgz",
+          "integrity": "sha1-dp66rz9KY6rTr56NMEybvnm/sOY=",
+          "dev": true,
+          "requires": {
+            "is-descriptor": "^1.0.0"
+          }
+        },
+        "is-accessor-descriptor": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
+          "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
+          "dev": true,
+          "requires": {
+            "kind-of": "^6.0.0"
+          }
+        },
+        "is-data-descriptor": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
+          "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
+          "dev": true,
+          "requires": {
+            "kind-of": "^6.0.0"
+          }
+        },
+        "is-descriptor": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
+          "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
+          "dev": true,
+          "requires": {
+            "is-accessor-descriptor": "^1.0.0",
+            "is-data-descriptor": "^1.0.0",
+            "kind-of": "^6.0.2"
+          }
+        },
+        "kind-of": {
+          "version": "6.0.2",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "dev": true
+        }
+      }
+    },
     "base64-js": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.2.1.tgz",
-      "integrity": "sha512-dwVUVIXsBZXwTuwnXI9RK8sBmgq09NDHzyR9SAph9eqk76gKK2JSQmZARC2zRC81JC2QTtxD0ARU5qTS25gIGw==",
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.0.tgz",
+      "integrity": "sha512-ccav/yGvoa80BQDljCxsmmQ3Xvx60/UpBIij5QN21W3wBi/hhIC9OoO+KLpu9IJTS9j4DRVJ3aDDF9cMSoa2lw==",
       "dev": true
     },
     "bcrypt-pbkdf": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
-      "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
+      "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
       "dev": true,
-      "optional": true,
       "requires": {
-        "tweetnacl": "0.14.5"
+        "tweetnacl": "^0.14.3"
       }
     },
     "big.js": {
@@ -232,9 +364,9 @@
       "dev": true
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-          "bundled": true,
-          "dev": true,
-          "optional": true
-        },
-        "co": {
-          "version": "4.6.0",
+        "chownr": {
+          "version": "1.0.1",
           "bundled": true,
           "dev": true,
           "optional": true
@@ -1209,14 +1586,6 @@
           "bundled": true,
           "dev": true
         },
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-          "bundled": true,
-          "dev": true,
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-          }
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         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
@@ -1230,36 +1599,11 @@
         "core-util-is": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
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           "dev": true,
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-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "dev": true,
-              "optional": true
-            }
-          }
+          "optional": true
         },
         "debug": {
-          "version": "2.6.8",
+          "version": "2.6.9",
           "bundled": true,
           "dev": true,
           "optional": true,
@@ -1268,85 +1612,37 @@
           }
         },
         "deep-extend": {
-          "version": "0.4.2",
+          "version": "0.5.1",
           "bundled": true,
           "dev": true,
           "optional": true
         },
-        "delayed-stream": {
-          "version": "1.0.0",
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           "dev": true,
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-          "requires": {
-            "jsbn": "0.1.1"
-          }
-        },
-        "extend": {
-          "version": "3.0.1",
+        "detect-libc": {
+          "version": "1.0.3",
           "bundled": true,
           "dev": true,
           "optional": true
         },
-        "extsprintf": {
-          "version": "1.0.2",
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-          "bundled": true,
-          "dev": true,
-          "optional": true
-        },
-        "form-data": {
-          "version": "2.1.4",
+        "fs-minipass": {
+          "version": "1.2.5",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "asynckit": "0.4.0",
-            "combined-stream": "1.0.5",
-            "mime-types": "2.1.15"
+            "minipass": "^2.2.1"
           }
         },
         "fs.realpath": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
-        },
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           "dev": true,
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-          "requires": {
-            "fstream": "1.0.11",
-            "inherits": "2.0.3",
-            "minimatch": "3.0.4"
-          }
+          "optional": true
         },
         "gauge": {
           "version": "2.7.4",
@@ -1354,65 +1650,28 @@
           "dev": true,
           "optional": true,
           "requires": {
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-            "console-control-strings": "1.1.0",
-            "has-unicode": "2.0.1",
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-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "dev": true,
-              "optional": true
-            }
+            "aproba": "^1.0.3",
+            "console-control-strings": "^1.0.0",
+            "has-unicode": "^2.0.0",
+            "object-assign": "^4.1.0",
+            "signal-exit": "^3.0.0",
+            "string-width": "^1.0.1",
+            "strip-ansi": "^3.0.1",
+            "wide-align": "^1.1.0"
           }
         },
         "glob": {
           "version": "7.1.2",
           "bundled": true,
           "dev": true,
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-            "once": "1.4.0",
-            "path-is-absolute": "1.0.1"
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-          "dev": true,
           "optional": true,
           "requires": {
-            "ajv": "4.11.8",
-            "har-schema": "1.0.5"
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
           }
         },
         "has-unicode": {
@@ -1421,41 +1680,32 @@
           "dev": true,
           "optional": true
         },
-        "hawk": {
-          "version": "3.1.3",
+        "iconv-lite": {
+          "version": "0.4.21",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "boom": "2.10.1",
-            "cryptiles": "2.0.5",
-            "hoek": "2.16.3",
-            "sntp": "1.0.9"
+            "safer-buffer": "^2.1.0"
           }
         },
-        "hoek": {
-          "version": "2.16.3",
-          "bundled": true,
-          "dev": true
-        },
-        "http-signature": {
-          "version": "1.1.1",
+        "ignore-walk": {
+          "version": "3.0.1",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "assert-plus": "0.2.0",
-            "jsprim": "1.4.0",
-            "sshpk": "1.13.0"
+            "minimatch": "^3.0.4"
           }
         },
         "inflight": {
           "version": "1.0.6",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
-            "once": "1.4.0",
-            "wrappy": "1.0.2"
+            "once": "^1.3.0",
+            "wrappy": "1"
           }
         },
         "inherits": {
@@ -1464,7 +1714,7 @@
           "dev": true
         },
         "ini": {
-          "version": "1.3.4",
+          "version": "1.3.5",
           "bundled": true,
           "dev": true,
           "optional": true
@@ -1474,165 +1724,125 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "number-is-nan": "1.0.1"
+            "number-is-nan": "^1.0.0"
           }
         },
-        "is-typedarray": {
-          "version": "1.0.0",
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-          "dev": true,
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-          "bundled": true,
           "dev": true,
           "optional": true
         },
-        "jodid25519": {
-          "version": "1.0.2",
+        "minimatch": {
+          "version": "3.0.4",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
-            "jsbn": "0.1.1"
+            "brace-expansion": "^1.1.7"
           }
         },
-        "jsbn": {
-          "version": "0.1.1",
+        "minimist": {
+          "version": "0.0.8",
           "bundled": true,
-          "dev": true,
-          "optional": true
+          "dev": true
         },
-        "json-schema": {
-          "version": "0.2.3",
+        "minipass": {
+          "version": "2.2.4",
           "bundled": true,
           "dev": true,
-          "optional": true
+          "requires": {
+            "safe-buffer": "^5.1.1",
+            "yallist": "^3.0.0"
+          }
         },
-        "json-stable-stringify": {
-          "version": "1.0.1",
+        "minizlib": {
+          "version": "1.1.0",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "jsonify": "0.0.0"
+            "minipass": "^2.2.1"
           }
         },
-        "json-stringify-safe": {
-          "version": "5.0.1",
+        "mkdirp": {
+          "version": "0.5.1",
           "bundled": true,
           "dev": true,
-          "optional": true
+          "requires": {
+            "minimist": "0.0.8"
+          }
         },
-        "jsonify": {
-          "version": "0.0.0",
+        "ms": {
+          "version": "2.0.0",
           "bundled": true,
           "dev": true,
           "optional": true
         },
-        "jsprim": {
-          "version": "1.4.0",
+        "needle": {
+          "version": "2.2.0",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "assert-plus": "1.0.0",
-            "extsprintf": "1.0.2",
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-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "dev": true,
-              "optional": true
-            }
+            "debug": "^2.1.2",
+            "iconv-lite": "^0.4.4",
+            "sax": "^1.2.4"
           }
         },
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-          "bundled": true,
-          "dev": true
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-          "requires": {
-            "mime-db": "1.27.0"
-          }
-        },
-        "minimatch": {
-          "version": "3.0.4",
+        "node-pre-gyp": {
+          "version": "0.10.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
-            "brace-expansion": "1.1.7"
+            "detect-libc": "^1.0.2",
+            "mkdirp": "^0.5.1",
+            "needle": "^2.2.0",
+            "nopt": "^4.0.1",
+            "npm-packlist": "^1.1.6",
+            "npmlog": "^4.0.2",
+            "rc": "^1.1.7",
+            "rimraf": "^2.6.1",
+            "semver": "^5.3.0",
+            "tar": "^4"
           }
         },
-        "minimist": {
-          "version": "0.0.8",
-          "bundled": true,
-          "dev": true
-        },
-        "mkdirp": {
-          "version": "0.5.1",
+        "nopt": {
+          "version": "4.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
-            "minimist": "0.0.8"
+            "abbrev": "1",
+            "osenv": "^0.1.4"
           }
         },
-        "ms": {
-          "version": "2.0.0",
+        "npm-bundled": {
+          "version": "1.0.3",
           "bundled": true,
           "dev": true,
           "optional": true
         },
-        "node-pre-gyp": {
-          "version": "0.6.36",
-          "bundled": true,
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-            "nopt": "4.0.1",
-            "npmlog": "4.1.0",
-            "rc": "1.2.1",
-            "request": "2.81.0",
-            "rimraf": "2.6.1",
-            "semver": "5.3.0",
-            "tar": "2.2.1",
-            "tar-pack": "3.4.0"
-          }
-        },
-        "nopt": {
-          "version": "4.0.1",
+        "npm-packlist": {
+          "version": "1.1.10",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "abbrev": "1.1.0",
-            "osenv": "0.1.4"
+            "ignore-walk": "^3.0.1",
+            "npm-bundled": "^1.0.1"
           }
         },
         "npmlog": {
-          "version": "4.1.0",
+          "version": "4.1.2",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "are-we-there-yet": "1.1.4",
-            "console-control-strings": "1.1.0",
-            "gauge": "2.7.4",
-            "set-blocking": "2.0.0"
+            "are-we-there-yet": "~1.1.2",
+            "console-control-strings": "~1.1.0",
+            "gauge": "~2.7.3",
+            "set-blocking": "~2.0.0"
           }
         },
         "number-is-nan": {
@@ -1640,12 +1850,6 @@
           "bundled": true,
           "dev": true
         },
-        "oauth-sign": {
-          "version": "0.8.2",
-          "bundled": true,
-          "dev": true,
-          "optional": true
-        },
         "object-assign": {
           "version": "4.1.1",
           "bundled": true,
@@ -1657,7 +1861,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "wrappy": "1.0.2"
+            "wrappy": "1"
           }
         },
         "os-homedir": {
@@ -1673,53 +1877,37 @@
           "optional": true
         },
         "osenv": {
-          "version": "0.1.4",
+          "version": "0.1.5",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "os-homedir": "1.0.2",
-            "os-tmpdir": "1.0.2"
+            "os-homedir": "^1.0.0",
+            "os-tmpdir": "^1.0.0"
           }
         },
         "path-is-absolute": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
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-          "bundled": true,
           "dev": true,
           "optional": true
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         "process-nextick-args": {
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-          "bundled": true,
-          "dev": true
-        },
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-          "version": "1.4.1",
-          "bundled": true,
-          "dev": true,
-          "optional": true
-        },
-        "qs": {
-          "version": "6.4.0",
+          "version": "2.0.0",
           "bundled": true,
           "dev": true,
           "optional": true
         },
         "rc": {
-          "version": "1.2.1",
+          "version": "1.2.7",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "deep-extend": "0.4.2",
-            "ini": "1.3.4",
-            "minimist": "1.2.0",
-            "strip-json-comments": "2.0.1"
+            "deep-extend": "^0.5.1",
+            "ini": "~1.3.0",
+            "minimist": "^1.2.0",
+            "strip-json-comments": "~2.0.1"
           },
           "dependencies": {
             "minimist": {
@@ -1731,144 +1919,89 @@
           }
         },
         "readable-stream": {
-          "version": "2.2.9",
-          "bundled": true,
-          "dev": true,
-          "requires": {
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-            "core-util-is": "1.0.2",
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-            "util-deprecate": "1.0.2"
-          }
-        },
-        "request": {
-          "version": "2.81.0",
+          "version": "2.3.6",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "aws-sign2": "0.6.0",
-            "aws4": "1.6.0",
-            "caseless": "0.12.0",
-            "combined-stream": "1.0.5",
-            "extend": "3.0.1",
-            "forever-agent": "0.6.1",
-            "form-data": "2.1.4",
-            "har-validator": "4.2.1",
-            "hawk": "3.1.3",
-            "http-signature": "1.1.1",
-            "is-typedarray": "1.0.0",
-            "isstream": "0.1.2",
-            "json-stringify-safe": "5.0.1",
-            "mime-types": "2.1.15",
-            "oauth-sign": "0.8.2",
-            "performance-now": "0.2.0",
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-            "safe-buffer": "5.0.1",
-            "stringstream": "0.0.5",
-            "tough-cookie": "2.3.2",
-            "tunnel-agent": "0.6.0",
-            "uuid": "3.0.1"
+            "core-util-is": "~1.0.0",
+            "inherits": "~2.0.3",
+            "isarray": "~1.0.0",
+            "process-nextick-args": "~2.0.0",
+            "safe-buffer": "~5.1.1",
+            "string_decoder": "~1.1.1",
+            "util-deprecate": "~1.0.1"
           }
         },
         "rimraf": {
-          "version": "2.6.1",
+          "version": "2.6.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
-            "glob": "7.1.2"
+            "glob": "^7.0.5"
           }
         },
         "safe-buffer": {
-          "version": "5.0.1",
+          "version": "5.1.1",
           "bundled": true,
           "dev": true
         },
-        "semver": {
-          "version": "5.3.0",
+        "safer-buffer": {
+          "version": "2.1.2",
           "bundled": true,
           "dev": true,
           "optional": true
         },
-        "set-blocking": {
-          "version": "2.0.0",
+        "sax": {
+          "version": "1.2.4",
           "bundled": true,
           "dev": true,
           "optional": true
         },
-        "signal-exit": {
-          "version": "3.0.2",
+        "semver": {
+          "version": "5.5.0",
           "bundled": true,
           "dev": true,
           "optional": true
         },
-        "sntp": {
-          "version": "1.0.9",
+        "set-blocking": {
+          "version": "2.0.0",
           "bundled": true,
           "dev": true,
-          "optional": true,
-          "requires": {
-            "hoek": "2.16.3"
-          }
+          "optional": true
         },
-        "sshpk": {
-          "version": "1.13.0",
+        "signal-exit": {
+          "version": "3.0.2",
           "bundled": true,
           "dev": true,
-          "optional": true,
-          "requires": {
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-            "assert-plus": "1.0.0",
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-            "jodid25519": "1.0.2",
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-              "version": "1.0.0",
-              "bundled": true,
-              "dev": true,
-              "optional": true
-            }
-          }
+          "optional": true
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         "string-width": {
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
           "requires": {
-            "code-point-at": "1.1.0",
-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
+            "code-point-at": "^1.0.0",
+            "is-fullwidth-code-point": "^1.0.0",
+            "strip-ansi": "^3.0.0"
           }
         },
         "string_decoder": {
-          "version": "1.0.1",
+          "version": "1.1.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
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+            "safe-buffer": "~5.1.0"
           }
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-          "bundled": true,
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-      "integrity": "sha1-evsa/lCAUkZInj23/g7TeTNqwPk=",
+      "version": "0.10.4",
+      "resolved": "https://registry.npmjs.org/util/-/util-0.10.4.tgz",
+      "integrity": "sha512-0Pm9hTQ3se5ll1XihRic3FDIku70C+iHUdT/W926rSgHV5QgXsYbKZN8MSC3tJtSkhuROzvsQjAaFENRXr+19A==",
       "dev": true,
       "requires": {
-        "inherits": "2.0.1"
-      },
-      "dependencies": {
-        "inherits": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
-          "integrity": "sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=",
-          "dev": true
-        }
+        "inherits": "2.0.3"
       }
     },
     "util-deprecate": {
@@ -3722,19 +4411,19 @@
       "dev": true
     },
     "uuid": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
-      "integrity": "sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g==",
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
+      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
       "dev": true
     },
     "validate-npm-package-license": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.1.tgz",
-      "integrity": "sha1-KAS6vnEq0zeUWaz74kdGqywwP7w=",
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
+      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
       "dev": true,
       "requires": {
-        "spdx-correct": "1.0.2",
-        "spdx-expression-parse": "1.0.4"
+        "spdx-correct": "^3.0.0",
+        "spdx-expression-parse": "^3.0.0"
       }
     },
     "verror": {
@@ -3743,17 +4432,9 @@
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "dev": true,
       "requires": {
-        "assert-plus": "1.0.0",
+        "assert-plus": "^1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
-      },
-      "dependencies": {
-        "assert-plus": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
-          "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
-          "dev": true
-        }
+        "extsprintf": "^1.2.0"
       }
     },
     "vm-browserify": {
@@ -3766,56 +4447,56 @@
       }
     },
     "watchpack": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-1.4.0.tgz",
-      "integrity": "sha1-ShRyvLuVK9Cpu0A2gB+VTfs5+qw=",
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-1.6.0.tgz",
+      "integrity": "sha512-i6dHe3EyLjMmDlU1/bGQpEw25XSjkJULPuAVKCbNRefQVq48yXKUpwg538F7AZTf9kyr57zj++pQFltUa5H7yA==",
       "dev": true,
       "requires": {
-        "async": "2.5.0",
-        "chokidar": "1.7.0",
-        "graceful-fs": "4.1.11"
+        "chokidar": "^2.0.2",
+        "graceful-fs": "^4.1.2",
+        "neo-async": "^2.5.0"
       }
     },
     "webpack": {
-      "version": "3.8.1",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-3.8.1.tgz",
-      "integrity": "sha512-5ZXLWWsMqHKFr5y0N3Eo5IIisxeEeRAajNq4mELb/WELOR7srdbQk2N5XiyNy2A/AgvlR3AmeBCZJW8lHrolbw==",
-      "dev": true,
-      "requires": {
-        "acorn": "5.1.1",
-        "acorn-dynamic-import": "2.0.2",
-        "ajv": "5.3.0",
-        "ajv-keywords": "2.1.1",
-        "async": "2.5.0",
-        "enhanced-resolve": "3.4.1",
-        "escope": "3.6.0",
-        "interpret": "1.0.4",
-        "json-loader": "0.5.7",
-        "json5": "0.5.1",
-        "loader-runner": "2.3.0",
-        "loader-utils": "1.1.0",
-        "memory-fs": "0.4.1",
-        "mkdirp": "0.5.1",
-        "node-libs-browser": "2.0.0",
-        "source-map": "0.5.7",
-        "supports-color": "4.5.0",
-        "tapable": "0.2.8",
-        "uglifyjs-webpack-plugin": "0.4.6",
-        "watchpack": "1.4.0",
-        "webpack-sources": "1.0.1",
-        "yargs": "8.0.2"
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-3.12.0.tgz",
+      "integrity": "sha512-Sw7MdIIOv/nkzPzee4o0EdvCuPmxT98+vVpIvwtcwcF1Q4SDSNp92vwcKc4REe7NItH9f1S4ra9FuQ7yuYZ8bQ==",
+      "dev": true,
+      "requires": {
+        "acorn": "^5.0.0",
+        "acorn-dynamic-import": "^2.0.0",
+        "ajv": "^6.1.0",
+        "ajv-keywords": "^3.1.0",
+        "async": "^2.1.2",
+        "enhanced-resolve": "^3.4.0",
+        "escope": "^3.6.0",
+        "interpret": "^1.0.0",
+        "json-loader": "^0.5.4",
+        "json5": "^0.5.1",
+        "loader-runner": "^2.3.0",
+        "loader-utils": "^1.1.0",
+        "memory-fs": "~0.4.1",
+        "mkdirp": "~0.5.0",
+        "node-libs-browser": "^2.0.0",
+        "source-map": "^0.5.3",
+        "supports-color": "^4.2.1",
+        "tapable": "^0.2.7",
+        "uglifyjs-webpack-plugin": "^0.4.6",
+        "watchpack": "^1.4.0",
+        "webpack-sources": "^1.0.1",
+        "yargs": "^8.0.2"
       },
       "dependencies": {
         "ajv": {
-          "version": "5.3.0",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.3.0.tgz",
-          "integrity": "sha1-RBT/dKUIecII7l/cgm4ywwNUnto=",
+          "version": "6.5.5",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.5.tgz",
+          "integrity": "sha512-7q7gtRQDJSyuEHjuVgHoUa2VuemFiCMrfQc9Tc08XTAc4Zj/5U1buQJ0HU6i7fKjXU09SVgSmxa4sLvuvS8Iyg==",
           "dev": true,
           "requires": {
-            "co": "4.6.0",
-            "fast-deep-equal": "1.0.0",
-            "fast-json-stable-stringify": "2.0.0",
-            "json-schema-traverse": "0.3.1"
+            "fast-deep-equal": "^2.0.1",
+            "fast-json-stable-stringify": "^2.0.0",
+            "json-schema-traverse": "^0.4.1",
+            "uri-js": "^4.2.2"
           }
         },
         "source-map": {
@@ -3827,30 +4508,30 @@
       }
     },
     "webpack-sources": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.0.1.tgz",
-      "integrity": "sha512-05tMxipUCwHqYaVS8xc7sYPTly8PzXayRCB4dTxLhWTqlKUiwH6ezmEe0OSreL1c30LAuA3Zqmc+uEBUGFJDjw==",
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.3.0.tgz",
+      "integrity": "sha512-OiVgSrbGu7NEnEvQJJgdSFPl2qWKkWq5lHMhgiToIiN9w34EBnjYzSYs+VbL5KoYiLNtFFa7BZIKxRED3I32pA==",
       "dev": true,
       "requires": {
-        "source-list-map": "2.0.0",
-        "source-map": "0.5.7"
+        "source-list-map": "^2.0.0",
+        "source-map": "~0.6.1"
       },
       "dependencies": {
         "source-map": {
-          "version": "0.5.7",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
-          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
           "dev": true
         }
       }
     },
     "which": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
-      "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "dev": true,
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
       }
     },
     "which-module": {
@@ -3877,8 +4558,8 @@
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
       "dev": true,
       "requires": {
-        "string-width": "1.0.2",
-        "strip-ansi": "3.0.1"
+        "string-width": "^1.0.1",
+        "strip-ansi": "^3.0.1"
       },
       "dependencies": {
         "string-width": {
@@ -3887,9 +4568,9 @@
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "dev": true,
           "requires": {
-            "code-point-at": "1.1.0",
-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
+            "code-point-at": "^1.0.0",
+            "is-fullwidth-code-point": "^1.0.0",
+            "strip-ansi": "^3.0.0"
           }
         }
       }
@@ -3913,9 +4594,9 @@
       "dev": true
     },
     "yallist": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.2.tgz",
+      "integrity": "sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k=",
       "dev": true
     },
     "yargs": {
@@ -3924,19 +4605,19 @@
       "integrity": "sha1-YpmpBVsc78lp/355wdkY3Osiw2A=",
       "dev": true,
       "requires": {
-        "camelcase": "4.1.0",
-        "cliui": "3.2.0",
-        "decamelize": "1.2.0",
-        "get-caller-file": "1.0.2",
-        "os-locale": "2.1.0",
-        "read-pkg-up": "2.0.0",
-        "require-directory": "2.1.1",
-        "require-main-filename": "1.0.1",
-        "set-blocking": "2.0.0",
-        "string-width": "2.1.1",
-        "which-module": "2.0.0",
-        "y18n": "3.2.1",
-        "yargs-parser": "7.0.0"
+        "camelcase": "^4.1.0",
+        "cliui": "^3.2.0",
+        "decamelize": "^1.1.1",
+        "get-caller-file": "^1.0.1",
+        "os-locale": "^2.0.0",
+        "read-pkg-up": "^2.0.0",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^1.0.1",
+        "set-blocking": "^2.0.0",
+        "string-width": "^2.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^3.2.1",
+        "yargs-parser": "^7.0.0"
       },
       "dependencies": {
         "camelcase": {
@@ -3951,9 +4632,9 @@
           "integrity": "sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=",
           "dev": true,
           "requires": {
-            "string-width": "1.0.2",
-            "strip-ansi": "3.0.1",
-            "wrap-ansi": "2.1.0"
+            "string-width": "^1.0.1",
+            "strip-ansi": "^3.0.1",
+            "wrap-ansi": "^2.0.0"
           },
           "dependencies": {
             "string-width": {
@@ -3962,9 +4643,9 @@
               "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
               "dev": true,
               "requires": {
-                "code-point-at": "1.1.0",
-                "is-fullwidth-code-point": "1.0.0",
-                "strip-ansi": "3.0.1"
+                "code-point-at": "^1.0.0",
+                "is-fullwidth-code-point": "^1.0.0",
+                "strip-ansi": "^3.0.0"
               }
             }
           }
@@ -3977,7 +4658,7 @@
       "integrity": "sha1-jQrELxbqVd69MyyvTEA4s+P139k=",
       "dev": true,
       "requires": {
-        "camelcase": "4.1.0"
+        "camelcase": "^4.1.0"
       },
       "dependencies": {
         "camelcase": {
diff --git a/package.json b/package.json
index b156dd6..daf5485 100644
--- a/package.json
+++ b/package.json
@@ -3,17 +3,23 @@
   "version": "1.0.0",
   "description": "Prepare git commit message from Jira issue by branch name",
   "devDependencies": {
-    "@types/node": "^8.0.12",
-    "pkg": "^4.1.1",
-    "ts-loader": "^2.3.4",
-    "typescript": "^2.5.2",
-    "webpack": "^3.5.5"
+    "@types/node": "^10.12.9",
+    "pkg": "^4.3.4",
+    "ts-loader": "^2.3.7",
+    "typescript": "^2.9.2",
+    "webpack": "^3.12.0"
   },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/Juszczak/git-jira.git"
   },
-  "keywords": ["git-jira", "git", "jira", "jira-rest-api", "automation"],
+  "keywords": [
+    "git-jira",
+    "git",
+    "jira",
+    "jira-rest-api",
+    "automation"
+  ],
   "author": "Adrian Juszczak <adrian@juszczak.io> (https://juszczak.io)",
   "license": "MIT",
   "bugs": {
diff --git a/src/exec.ts b/src/exec.ts
new file mode 100644
index 0000000..cb7a2cb
--- /dev/null
+++ b/src/exec.ts
@@ -0,0 +1,4 @@
+import {exec as execAsync} from 'child_process';
+import {promisify} from 'util';
+
+export const exec = promisify(execAsync);
diff --git a/src/prepare-commit-msg.ts b/src/prepare-commit-msg.ts
index bd780b4..9131671 100644
--- a/src/prepare-commit-msg.ts
+++ b/src/prepare-commit-msg.ts
@@ -1,17 +1,17 @@
-import {exec} from 'child_process';
 import {readFile, writeFile} from 'fs';
 import {IncomingMessage} from 'http';
 import {get, RequestOptions} from 'https';
 import {resolve} from 'path';
 import {commitEditMsg} from './constants';
 import {ENV_VARS} from './env-vars';
+import {exec} from './exec';
 import {Credentials, Environment, JiraIssue, JiraResponse} from './interfaces';
 import {getRootPath} from './utils';
 
 const readCredentialsFromEnv: () => Environment = (): Environment => ({
   username: process.env[ENV_VARS.GIT_JIRA_USER] as string,
   password: process.env[ENV_VARS.GIT_JIRA_PASSWORD] as string,
-  url: (process.env[ENV_VARS.GIT_JIRA_URL] as string),
+  url: process.env[ENV_VARS.GIT_JIRA_URL] as string,
 });
 
 const getCredentials: () => Promise<Credentials> = async (): Promise<Credentials> => {
@@ -29,7 +29,12 @@ const getCredentials: () => Promise<Credentials> = async (): Promise<Credentials
   return {host, password, username, port} as Credentials;
 };
 
-const fetchIssues: (credentials: Credentials) => Promise<JiraResponse> = async ({host, password, username, port}: Credentials): Promise<JiraResponse> => {
+const fetchIssues: (credentials: Credentials) => Promise<JiraResponse> = async ({
+  host,
+  password,
+  username,
+  port,
+}: Credentials): Promise<JiraResponse> => {
   const request: RequestOptions = {
     auth: `${username}:${password}`,
     headers: {'Content-Type': 'application/json'},
@@ -39,32 +44,37 @@ const fetchIssues: (credentials: Credentials) => Promise<JiraResponse> = async (
   };
 
   const getResponseData: (response: IncomingMessage) => Promise<string> = async (response: IncomingMessage): Promise<string> => {
-    return new Promise<string>((resolveCb: (data: string) => void, rejectCb: (error: Error) => void): void => {
-      let data: string = '';
-      response.on('data', (chunk: string) => { data += chunk; });
-      response.on('end', () => resolveCb(data));
-      response.on('error', (error: Error) => rejectCb(error));
-    });
+    return new Promise<string>(
+      (resolveCb: (data: string) => void, rejectCb: (error: Error) => void): void => {
+        let data: string = '';
+        response.on('data', (chunk: string) => {
+          data += chunk;
+        });
+        response.on('end', () => resolveCb(data));
+        response.on('error', (error: Error) => rejectCb(error));
+      },
+    );
   };
 
-  return new Promise<JiraResponse>(async (resolveCb: (response: JiraResponse) => void, rejectCb: (error: Error) => void): Promise<void> => {
-    get(request, async (response: IncomingMessage): Promise<void> => {
-      try {
-        resolveCb(JSON.parse(await getResponseData(response)) as JiraResponse);
-      } catch (error) {
-        rejectCb(error.message);
-      }
-    });
-  });
+  return new Promise<JiraResponse>(
+    async (resolveCb: (response: JiraResponse) => void, rejectCb: (error: Error) => void): Promise<void> => {
+      get(
+        request,
+        async (response: IncomingMessage): Promise<void> => {
+          try {
+            resolveCb(JSON.parse(await getResponseData(response)) as JiraResponse);
+          } catch (error) {
+            rejectCb(error.message);
+          }
+        },
+      );
+    },
+  );
 };
 
 const getGitBranchName: () => Promise<string> = async (): Promise<string> => {
-  return new Promise<string>((resolveCb: (name: string) => void, rejectCb: (error: Error) => void): void => {
-    exec('git rev-parse --abbrev-ref HEAD', async (error: Error, stdout: string) => {
-      if (error && /fatal/.test(stdout)) rejectCb(error || stdout.trim());
-      else resolveCb(stdout.trim());
-    });
-  });
+  const {stdout, stderr} = await exec('git rev-parse --abbrev-ref HEAD');
+  return stderr ? stderr.trim() : stdout.trim();
 };
 
 const prepareCommitMessage: (branch: string) => Promise<string> = async (branch: string): Promise<string> => {
@@ -79,7 +89,7 @@ const prepareCommitMessage: (branch: string) => Promise<string> = async (branch:
     const header: string = response.issues
       .filter((issue: JiraIssue) => issue.key === branch)
       .reduce((message: string, issue: JiraIssue) => {
-        const parent: string = (issue.fields.parent && issue.fields.parent.key) ? `[${issue.fields.parent.key}]` : '';
+        const parent: string = issue.fields.parent && issue.fields.parent.key ? `[${issue.fields.parent.key}]` : '';
         message = parent + `[${issue.key}] ${issue.fields.summary}\n\nChanges made:\n- `;
         return message;
       }, '');
@@ -92,13 +102,11 @@ const prepareCommitMessage: (branch: string) => Promise<string> = async (branch:
 const setCommitEditMsg: () => Promise<void> = async (): Promise<void> => {
   const branch: string = await getGitBranchName();
   const rootPath: string = await getRootPath();
-  const commitMessagePath: string = resolve(rootPath, commitEditMsg);
+  const commitMessagePath: string = resolve(rootPath.trim(), commitEditMsg.trim());
   readFile(commitMessagePath, 'utf8', async (error: Error, message: string) => {
     if (error) throw new Error(error.message);
 
-    if (~message.substr(0, 20).indexOf(`[${branch}]`)) {
-      console.log(`commit message for ${branch} already exists`);
-    } else {
+    if (!~message.substr(0, 20).indexOf(`[${branch}]`)) {
       const prependExistingMessage: (msg: string) => Promise<string> = async (msg: string): Promise<string> => {
         const header: string = await prepareCommitMessage(branch);
         return `${header}\n${msg}`;
@@ -108,4 +116,6 @@ const setCommitEditMsg: () => Promise<void> = async (): Promise<void> => {
   });
 };
 
-setCommitEditMsg();
+if (!process.env.DISABLE_GIT_JIRA) {
+  setCommitEditMsg();
+}
diff --git a/src/utils.ts b/src/utils.ts
index d341c47..e07f7af 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,10 +1,6 @@
-import {exec} from 'child_process';
+import {exec} from './exec';
 
 export const getRootPath: () => Promise<string> = async (): Promise<string> => {
-  return new Promise((resolve: (path: string) => void, reject: (error: Error) => void): void => {
-    exec('git rev-parse --show-toplevel', async (error: Error, stdout: string) => {
-      if (error) reject(error);
-      else resolve(stdout.trim());
-    });
-  });
+  const {stdout, stderr} = await exec('git rev-parse --show-toplevel');
+  return stderr ? stderr.trim() : stdout.trim();
 };
diff --git a/tslint.json b/tslint.json
index d88eb1f..e06d201 100644
--- a/tslint.json
+++ b/tslint.json
@@ -70,8 +70,6 @@
     "templates-use-public": true,
     "trailing-comma": [true, {"multiline": "always", "singleline": "never"}],
     "triple-equals": [true, "allow-null-check"],
-    "typedef": [true, "call-signature", "arrow-call-signature", "parameter", "arrow-parameter", "property-declaration", "variable-declaration", "member-variable-declaration", "object-destructuring", "array-destructuring"],
-    "typedef-whitespace": [true, {"call-signature": "nospace", "index-signature": "nospace", "parameter": "nospace", "property-declaration": "nospace", "variable-declaration": "nospace"}],
     "typeof-compare": true,
     "unified-signatures": true,
     "use-host-property-decorator": true,