diff --git a/package-lock.json b/package-lock.json
index 0c0bd21..f5174ac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
       "integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
       "dev": true,
       "requires": {
-        "acorn": "4.0.13"
+        "acorn": "^4.0.4"
       }
     },
     "ajv": {
@@ -31,10 +31,10 @@
       "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
       "dev": true,
       "requires": {
-        "co": "4.6.0",
-        "fast-deep-equal": "1.1.0",
-        "fast-json-stable-stringify": "2.0.0",
-        "json-schema-traverse": "0.3.1"
+        "co": "^4.6.0",
+        "fast-deep-equal": "^1.0.0",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.3.0"
       }
     },
     "align-text": {
@@ -43,9 +43,9 @@
       "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": {
@@ -84,7 +84,7 @@
       "integrity": "sha1-126/jKlNJ24keja61EpLdKthGZE=",
       "dev": true,
       "requires": {
-        "default-require-extensions": "1.0.0"
+        "default-require-extensions": "^1.0.0"
       }
     },
     "argparse": {
@@ -93,7 +93,7 @@
       "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
       "dev": true,
       "requires": {
-        "sprintf-js": "1.0.3"
+        "sprintf-js": "~1.0.2"
       }
     },
     "arr-diff": {
@@ -102,7 +102,7 @@
       "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
       "dev": true,
       "requires": {
-        "arr-flatten": "1.1.0"
+        "arr-flatten": "^1.0.1"
       }
     },
     "arr-flatten": {
@@ -171,9 +171,9 @@
       "integrity": "sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=",
       "dev": true,
       "requires": {
-        "chalk": "1.1.3",
-        "esutils": "2.0.2",
-        "js-tokens": "3.0.2"
+        "chalk": "^1.1.3",
+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.2"
       }
     },
     "babel-core": {
@@ -182,25 +182,25 @@
       "integrity": "sha1-rzL3izGm/O8RnIew/Y2XU/A6C7g=",
       "dev": true,
       "requires": {
-        "babel-code-frame": "6.26.0",
-        "babel-generator": "6.26.1",
-        "babel-helpers": "6.24.1",
-        "babel-messages": "6.23.0",
-        "babel-register": "6.26.0",
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0",
-        "babylon": "6.18.0",
-        "convert-source-map": "1.5.1",
-        "debug": "2.6.9",
-        "json5": "0.5.1",
-        "lodash": "4.17.5",
-        "minimatch": "3.0.4",
-        "path-is-absolute": "1.0.1",
-        "private": "0.1.8",
-        "slash": "1.0.0",
-        "source-map": "0.5.7"
+        "babel-code-frame": "^6.26.0",
+        "babel-generator": "^6.26.0",
+        "babel-helpers": "^6.24.1",
+        "babel-messages": "^6.23.0",
+        "babel-register": "^6.26.0",
+        "babel-runtime": "^6.26.0",
+        "babel-template": "^6.26.0",
+        "babel-traverse": "^6.26.0",
+        "babel-types": "^6.26.0",
+        "babylon": "^6.18.0",
+        "convert-source-map": "^1.5.0",
+        "debug": "^2.6.8",
+        "json5": "^0.5.1",
+        "lodash": "^4.17.4",
+        "minimatch": "^3.0.4",
+        "path-is-absolute": "^1.0.1",
+        "private": "^0.1.7",
+        "slash": "^1.0.0",
+        "source-map": "^0.5.6"
       }
     },
     "babel-generator": {
@@ -209,14 +209,14 @@
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       "dev": true,
       "requires": {
-        "babel-messages": "6.23.0",
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0",
-        "detect-indent": "4.0.0",
-        "jsesc": "1.3.0",
-        "lodash": "4.17.5",
-        "source-map": "0.5.7",
-        "trim-right": "1.0.1"
+        "babel-messages": "^6.23.0",
+        "babel-runtime": "^6.26.0",
+        "babel-types": "^6.26.0",
+        "detect-indent": "^4.0.0",
+        "jsesc": "^1.3.0",
+        "lodash": "^4.17.4",
+        "source-map": "^0.5.7",
+        "trim-right": "^1.0.1"
       }
     },
     "babel-helpers": {
@@ -225,8 +225,8 @@
       "integrity": "sha1-NHHenK7DiOXIUOWX5Yom3fN2ArI=",
       "dev": true,
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-template": "6.26.0"
+        "babel-runtime": "^6.22.0",
+        "babel-template": "^6.24.1"
       }
     },
     "babel-jest": {
@@ -235,9 +235,9 @@
       "integrity": "sha1-F+u6jLMoXJBthZ6HB+Tnl5X7ZeM=",
       "dev": true,
       "requires": {
-        "babel-core": "6.26.0",
-        "babel-plugin-istanbul": "3.1.2",
-        "babel-preset-jest": "18.0.0"
+        "babel-core": "^6.0.0",
+        "babel-plugin-istanbul": "^3.0.0",
+        "babel-preset-jest": "^18.0.0"
       }
     },
     "babel-messages": {
@@ -246,7 +246,7 @@
       "integrity": "sha1-8830cDhYA1sqKVHG7F7fbGLyYw4=",
       "dev": true,
       "requires": {
-        "babel-runtime": "6.26.0"
+        "babel-runtime": "^6.22.0"
       }
     },
     "babel-plugin-istanbul": {
@@ -255,10 +255,10 @@
       "integrity": "sha1-EdWr3hhCXsJLXWSMfgtdJc01SiI=",
       "dev": true,
       "requires": {
-        "find-up": "1.1.2",
-        "istanbul-lib-instrument": "1.10.1",
-        "object-assign": "4.1.1",
-        "test-exclude": "3.3.0"
+        "find-up": "^1.1.2",
+        "istanbul-lib-instrument": "^1.4.2",
+        "object-assign": "^4.1.0",
+        "test-exclude": "^3.3.0"
       }
     },
     "babel-plugin-jest-hoist": {
@@ -273,7 +273,7 @@
       "integrity": "sha1-hPr4yj7GWrp9Xj9Zu67ZNaskBJ4=",
       "dev": true,
       "requires": {
-        "babel-plugin-jest-hoist": "18.0.0"
+        "babel-plugin-jest-hoist": "^18.0.0"
       }
     },
     "babel-register": {
@@ -282,13 +282,13 @@
       "integrity": "sha1-btAhFz4vy0htestFxgCahW9kcHE=",
       "dev": true,
       "requires": {
-        "babel-core": "6.26.0",
-        "babel-runtime": "6.26.0",
-        "core-js": "2.5.4",
-        "home-or-tmp": "2.0.0",
-        "lodash": "4.17.5",
-        "mkdirp": "0.5.1",
-        "source-map-support": "0.4.18"
+        "babel-core": "^6.26.0",
+        "babel-runtime": "^6.26.0",
+        "core-js": "^2.5.0",
+        "home-or-tmp": "^2.0.0",
+        "lodash": "^4.17.4",
+        "mkdirp": "^0.5.1",
+        "source-map-support": "^0.4.15"
       }
     },
     "babel-runtime": {
@@ -297,8 +297,8 @@
       "integrity": "sha1-llxwWGaOgrVde/4E/yM3vItWR/4=",
       "dev": true,
       "requires": {
-        "core-js": "2.5.4",
-        "regenerator-runtime": "0.11.1"
+        "core-js": "^2.4.0",
+        "regenerator-runtime": "^0.11.0"
       }
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     "babel-template": {
@@ -307,11 +307,11 @@
       "integrity": "sha1-3gPi0WOWsGn0bdn/+FIfsaDjXgI=",
       "dev": true,
       "requires": {
-        "babel-runtime": "6.26.0",
-        "babel-traverse": "6.26.0",
-        "babel-types": "6.26.0",
-        "babylon": "6.18.0",
-        "lodash": "4.17.5"
+        "babel-runtime": "^6.26.0",
+        "babel-traverse": "^6.26.0",
+        "babel-types": "^6.26.0",
+        "babylon": "^6.18.0",
+        "lodash": "^4.17.4"
       }
     },
     "babel-traverse": {
@@ -320,15 +320,15 @@
       "integrity": "sha1-RqnL1+3MYsjlwGTi0tjQ9ANXZu4=",
       "dev": true,
       "requires": {
-        "babel-code-frame": "6.26.0",
-        "babel-messages": "6.23.0",
-        "babel-runtime": "6.26.0",
-        "babel-types": "6.26.0",
-        "babylon": "6.18.0",
-        "debug": "2.6.9",
-        "globals": "9.18.0",
-        "invariant": "2.2.4",
-        "lodash": "4.17.5"
+        "babel-code-frame": "^6.26.0",
+        "babel-messages": "^6.23.0",
+        "babel-runtime": "^6.26.0",
+        "babel-types": "^6.26.0",
+        "babylon": "^6.18.0",
+        "debug": "^2.6.8",
+        "globals": "^9.18.0",
+        "invariant": "^2.2.2",
+        "lodash": "^4.17.4"
       }
     },
     "babel-types": {
@@ -337,10 +337,10 @@
       "integrity": "sha1-o7Bz+Uq0nrb6Vc1lInozQ4BjJJc=",
       "dev": true,
       "requires": {
-        "babel-runtime": "6.26.0",
-        "esutils": "2.0.2",
-        "lodash": "4.17.5",
-        "to-fast-properties": "1.0.3"
+        "babel-runtime": "^6.26.0",
+        "esutils": "^2.0.2",
+        "lodash": "^4.17.4",
+        "to-fast-properties": "^1.0.3"
       }
     },
     "babylon": {
@@ -362,7 +362,7 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "tweetnacl": "0.14.5"
+        "tweetnacl": "^0.14.3"
       }
     },
     "bl": {
@@ -371,7 +371,7 @@
       "integrity": "sha1-/cqHGplxOqANGeO7ukHER4emU5g=",
       "dev": true,
       "requires": {
-        "readable-stream": "2.0.6"
+        "readable-stream": "~2.0.5"
       }
     },
     "boom": {
@@ -380,7 +380,7 @@
       "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
       "dev": true,
       "requires": {
-        "hoek": "2.16.3"
+        "hoek": "2.x.x"
       }
     },
     "brace-expansion": {
@@ -389,7 +389,7 @@
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       "dev": true,
       "requires": {
-        "balanced-match": "1.0.0",
+        "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
       }
     },
@@ -399,9 +399,9 @@
       "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
       "dev": true,
       "requires": {
-        "expand-range": "1.8.2",
-        "preserve": "0.2.0",
-        "repeat-element": "1.1.2"
+        "expand-range": "^1.8.1",
+        "preserve": "^0.2.0",
+        "repeat-element": "^1.1.2"
       }
     },
     "browser-resolve": {
@@ -427,7 +427,7 @@
       "integrity": "sha1-OBEWlwsqbe6lZG3RXdcnhES1YWk=",
       "dev": true,
       "requires": {
-        "node-int64": "0.4.0"
+        "node-int64": "^0.4.0"
       }
     },
     "builtin-modules": {
@@ -455,8 +455,8 @@
       "integrity": "sha1-UOIcGwqjdyn5N33vGWtanOyTLuk=",
       "dev": true,
       "requires": {
-        "ansicolors": "0.2.1",
-        "redeyed": "1.0.1"
+        "ansicolors": "~0.2.1",
+        "redeyed": "~1.0.0"
       }
     },
     "caseless": {
@@ -472,8 +472,8 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "align-text": "0.1.4",
-        "lazy-cache": "1.0.4"
+        "align-text": "^0.1.3",
+        "lazy-cache": "^1.0.3"
       }
     },
     "chalk": {
@@ -482,11 +482,11 @@
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
       "dev": true,
       "requires": {
-        "ansi-styles": "2.2.1",
-        "escape-string-regexp": "1.0.5",
-        "has-ansi": "2.0.0",
-        "strip-ansi": "3.0.1",
-        "supports-color": "2.0.0"
+        "ansi-styles": "^2.2.1",
+        "escape-string-regexp": "^1.0.2",
+        "has-ansi": "^2.0.0",
+        "strip-ansi": "^3.0.0",
+        "supports-color": "^2.0.0"
       }
     },
     "ci-info": {
@@ -510,8 +510,8 @@
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       "dev": true,
       "requires": {
-        "marked": "0.3.19",
-        "marked-terminal": "2.0.0"
+        "marked": "^0.3.12",
+        "marked-terminal": "^2.0.0"
       }
     },
     "cliui": {
@@ -521,8 +521,8 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "center-align": "0.1.3",
-        "right-align": "0.1.3",
+        "center-align": "^0.1.1",
+        "right-align": "^0.1.1",
         "wordwrap": "0.0.2"
       },
       "dependencies": {
@@ -553,10 +553,10 @@
       "integrity": "sha1-nyD22C02qrmdIKvk9sc3L0xtGRU=",
       "dev": true,
       "requires": {
-        "async": "1.5.2",
+        "async": "~1.5.2",
         "commander": "2.9.0",
         "lcov-parse": "0.0.10",
-        "request": "2.74.0"
+        "request": "~2.74.0"
       }
     },
     "colors": {
@@ -571,7 +571,7 @@
       "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
       "dev": true,
       "requires": {
-        "delayed-stream": "1.0.0"
+        "delayed-stream": "~1.0.0"
       }
     },
     "commander": {
@@ -580,7 +580,7 @@
       "integrity": "sha1-nJkJQXbhIkDLItbFFGCYQA/g99Q=",
       "dev": true,
       "requires": {
-        "graceful-readlink": "1.0.1"
+        "graceful-readlink": ">= 1.0.0"
       }
     },
     "compare-versions": {
@@ -625,7 +625,7 @@
       "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
       "dev": true,
       "requires": {
-        "boom": "2.10.1"
+        "boom": "2.x.x"
       }
     },
     "cssom": {
@@ -640,7 +640,7 @@
       "integrity": "sha1-VBCXI0yyUTyDzu06zdwn/yeYfVQ=",
       "dev": true,
       "requires": {
-        "cssom": "0.3.2"
+        "cssom": "0.3.x"
       }
     },
     "dashdash": {
@@ -649,7 +649,7 @@
       "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
       "dev": true,
       "requires": {
-        "assert-plus": "1.0.0"
+        "assert-plus": "^1.0.0"
       },
       "dependencies": {
         "assert-plus": {
@@ -687,7 +687,7 @@
       "integrity": "sha1-836hXT4T/9m0N9M+GnW1+5eHTLg=",
       "dev": true,
       "requires": {
-        "strip-bom": "2.0.0"
+        "strip-bom": "^2.0.0"
       }
     },
     "delayed-stream": {
@@ -702,7 +702,7 @@
       "integrity": "sha1-920GQ1LN9Docts5hnE7jqUdd4gg=",
       "dev": true,
       "requires": {
-        "repeating": "2.0.1"
+        "repeating": "^2.0.0"
       }
     },
     "diff": {
@@ -718,7 +718,7 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "jsbn": "0.1.1"
+        "jsbn": "~0.1.0"
       }
     },
     "errno": {
@@ -727,7 +727,7 @@
       "integrity": "sha512-MfrRBDWzIWifgq6tJj60gkAwtLNb6sQPlcFrSOflcP1aFmmruKQ2wRnze/8V6kgyz7H3FF8Npzv78mZ7XLLflg==",
       "dev": true,
       "requires": {
-        "prr": "1.0.1"
+        "prr": "~1.0.1"
       }
     },
     "error-ex": {
@@ -736,7 +736,7 @@
       "integrity": "sha1-+FWobOYa3E6GIcPNoh56dhLDqNw=",
       "dev": true,
       "requires": {
-        "is-arrayish": "0.2.1"
+        "is-arrayish": "^0.2.1"
       }
     },
     "escape-string-regexp": {
@@ -751,11 +751,11 @@
       "integrity": "sha512-6hTjO1NAWkHnDk3OqQ4YrCuwwmGHL9S3nPlzBOUG/R44rda3wLNrfvQ5fkSGjyhHFKM7ALPKcKGrwvCLe0lC7Q==",
       "dev": true,
       "requires": {
-        "esprima": "3.1.3",
-        "estraverse": "4.2.0",
-        "esutils": "2.0.2",
-        "optionator": "0.8.2",
-        "source-map": "0.6.1"
+        "esprima": "^3.1.3",
+        "estraverse": "^4.2.0",
+        "esutils": "^2.0.2",
+        "optionator": "^0.8.1",
+        "source-map": "~0.6.1"
       },
       "dependencies": {
         "esprima": {
@@ -797,7 +797,7 @@
       "integrity": "sha512-aLt95pexaugVtQerpmE51+4QfWrNc304uez7jvj6fWnN8GeEHpttB8F36n8N7uVhUMbH/1enbxQ9HImZ4w/9qg==",
       "dev": true,
       "requires": {
-        "merge": "1.2.0"
+        "merge": "^1.1.3"
       }
     },
     "expand-brackets": {
@@ -806,7 +806,7 @@
       "integrity": "sha1-3wcoTjQqgHzXM6xa9yQR5YHRF3s=",
       "dev": true,
       "requires": {
-        "is-posix-bracket": "0.1.1"
+        "is-posix-bracket": "^0.1.0"
       }
     },
     "expand-range": {
@@ -815,7 +815,7 @@
       "integrity": "sha1-opnv/TNf4nIeuujiV+x5ZE/IUzc=",
       "dev": true,
       "requires": {
-        "fill-range": "2.2.3"
+        "fill-range": "^2.1.0"
       }
     },
     "extend": {
@@ -830,7 +830,7 @@
       "integrity": "sha1-Lhj/PS9JqydlzskCPwEdqo2DSaE=",
       "dev": true,
       "requires": {
-        "is-extglob": "1.0.0"
+        "is-extglob": "^1.0.0"
       }
     },
     "extsprintf": {
@@ -878,8 +878,8 @@
       "integrity": "sha1-jnVIqW08wjJ+5eZ0FocjozO7oqA=",
       "dev": true,
       "requires": {
-        "glob": "7.1.2",
-        "minimatch": "3.0.4"
+        "glob": "^7.0.3",
+        "minimatch": "^3.0.3"
       }
     },
     "fill-range": {
@@ -888,11 +888,11 @@
       "integrity": "sha1-ULd9/X5Gm8dJJHCWNpn+eoSFpyM=",
       "dev": true,
       "requires": {
-        "is-number": "2.1.0",
-        "isobject": "2.1.0",
-        "randomatic": "1.1.7",
-        "repeat-element": "1.1.2",
-        "repeat-string": "1.6.1"
+        "is-number": "^2.1.0",
+        "isobject": "^2.0.0",
+        "randomatic": "^1.1.3",
+        "repeat-element": "^1.1.2",
+        "repeat-string": "^1.5.2"
       }
     },
     "find-up": {
@@ -901,8 +901,8 @@
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-        "micromatch": "2.3.11",
-        "sane": "1.4.1",
-        "worker-farm": "1.6.0"
+        "fb-watchman": "^1.9.0",
+        "graceful-fs": "^4.1.6",
+        "micromatch": "^2.3.11",
+        "sane": "~1.4.1",
+        "worker-farm": "^1.3.1"
       }
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     "jest-jasmine2": {
@@ -1609,11 +1609,11 @@
       "integrity": "sha1-CU4QTCwYlwh2bHcmO7Kuy1hgqAs=",
       "dev": true,
       "requires": {
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-        "jest-matchers": "18.1.0",
-        "jest-snapshot": "18.1.0",
-        "jest-util": "18.1.0"
+        "graceful-fs": "^4.1.6",
+        "jest-matcher-utils": "^18.1.0",
+        "jest-matchers": "^18.1.0",
+        "jest-snapshot": "^18.1.0",
+        "jest-util": "^18.1.0"
       }
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@@ -1622,8 +1622,8 @@
       "integrity": "sha1-GsRlGVXuKmDO8ef8yYzf13PA+TI=",
       "dev": true,
       "requires": {
-        "chalk": "1.1.3",
-        "pretty-format": "18.1.0"
+        "chalk": "^1.1.3",
+        "pretty-format": "^18.1.0"
       }
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     "jest-matchers": {
@@ -1632,10 +1632,10 @@
       "integrity": "sha1-A0FIS/h6H9C6wKTSyJnit3o/Hq0=",
       "dev": true,
       "requires": {
-        "jest-diff": "18.1.0",
-        "jest-matcher-utils": "18.1.0",
-        "jest-util": "18.1.0",
-        "pretty-format": "18.1.0"
+        "jest-diff": "^18.1.0",
+        "jest-matcher-utils": "^18.1.0",
+        "jest-util": "^18.1.0",
+        "pretty-format": "^18.1.0"
       }
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@@ -1650,10 +1650,10 @@
       "integrity": "sha1-aACsy1NmWMkGzV4p3kErGrmsJJs=",
       "dev": true,
       "requires": {
-        "browser-resolve": "1.11.2",
-        "jest-file-exists": "17.0.0",
-        "jest-haste-map": "18.1.0",
-        "resolve": "1.6.0"
+        "browser-resolve": "^1.11.2",
+        "jest-file-exists": "^17.0.0",
+        "jest-haste-map": "^18.1.0",
+        "resolve": "^1.2.0"
       }
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@@ -1662,8 +1662,8 @@
       "integrity": "sha1-gTT7XK9Zye2EL+AVKrAcUnEfG7s=",
       "dev": true,
       "requires": {
-        "jest-file-exists": "17.0.0",
-        "jest-resolve": "18.1.0"
+        "jest-file-exists": "^17.0.0",
+        "jest-resolve": "^18.1.0"
       }
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@@ -1672,21 +1672,21 @@
       "integrity": "sha1-Or/WhxdbIfw7haK4BkOZ6ZeFmSI=",
       "dev": true,
       "requires": {
-        "babel-core": "6.26.0",
-        "babel-jest": "18.0.0",
-        "babel-plugin-istanbul": "3.1.2",
-        "chalk": "1.1.3",
-        "graceful-fs": "4.1.11",
-        "jest-config": "18.1.0",
-        "jest-file-exists": "17.0.0",
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-        "jest-snapshot": "18.1.0",
-        "jest-util": "18.1.0",
-        "json-stable-stringify": "1.0.1",
-        "micromatch": "2.3.11",
-        "yargs": "6.6.0"
+        "babel-core": "^6.0.0",
+        "babel-jest": "^18.0.0",
+        "babel-plugin-istanbul": "^3.0.0",
+        "chalk": "^1.1.3",
+        "graceful-fs": "^4.1.6",
+        "jest-config": "^18.1.0",
+        "jest-file-exists": "^17.0.0",
+        "jest-haste-map": "^18.1.0",
+        "jest-mock": "^18.0.0",
+        "jest-resolve": "^18.1.0",
+        "jest-snapshot": "^18.1.0",
+        "jest-util": "^18.1.0",
+        "json-stable-stringify": "^1.0.0",
+        "micromatch": "^2.3.11",
+        "yargs": "^6.3.0"
       }
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@@ -1695,12 +1695,12 @@
       "integrity": "sha1-VbltLuY5ybznb4fyo/1Atxx6WRY=",
       "dev": true,
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-        "jest-matcher-utils": "18.1.0",
-        "jest-util": "18.1.0",
-        "natural-compare": "1.4.0",
-        "pretty-format": "18.1.0"
+        "jest-diff": "^18.1.0",
+        "jest-file-exists": "^17.0.0",
+        "jest-matcher-utils": "^18.1.0",
+        "jest-util": "^18.1.0",
+        "natural-compare": "^1.4.0",
+        "pretty-format": "^18.1.0"
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@@ -1709,12 +1709,12 @@
       "integrity": "sha1-OpnDIRSrF/hL4JQ4JScAbm1L/Go=",
       "dev": true,
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-        "chalk": "1.1.3",
-        "diff": "3.5.0",
-        "graceful-fs": "4.1.11",
-        "jest-file-exists": "17.0.0",
-        "jest-mock": "18.0.0",
-        "mkdirp": "0.5.1"
+        "chalk": "^1.1.1",
+        "diff": "^3.0.0",
+        "graceful-fs": "^4.1.6",
+        "jest-file-exists": "^17.0.0",
+        "jest-mock": "^18.0.0",
+        "mkdirp": "^0.5.1"
       }
     },
     "js-tokens": {
@@ -1729,8 +1729,8 @@
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       "dev": true,
       "requires": {
-        "argparse": "1.0.10",
-        "esprima": "4.0.0"
+        "argparse": "^1.0.7",
+        "esprima": "^4.0.0"
       }
     },
     "jsbn": {
@@ -1746,25 +1746,25 @@
       "integrity": "sha1-6MVG//ywbADUgzyoRBD+1/igl9Q=",
       "dev": true,
       "requires": {
-        "abab": "1.0.4",
-        "acorn": "4.0.13",
-        "acorn-globals": "3.1.0",
-        "array-equal": "1.0.0",
-        "content-type-parser": "1.0.2",
-        "cssom": "0.3.2",
-        "cssstyle": "0.2.37",
-        "escodegen": "1.9.1",
-        "html-encoding-sniffer": "1.0.2",
-        "nwmatcher": "1.4.4",
-        "parse5": "1.5.1",
-        "request": "2.85.0",
-        "sax": "1.2.4",
-        "symbol-tree": "3.2.2",
-        "tough-cookie": "2.3.4",
-        "webidl-conversions": "4.0.2",
-        "whatwg-encoding": "1.0.3",
-        "whatwg-url": "4.8.0",
-        "xml-name-validator": "2.0.1"
+        "abab": "^1.0.3",
+        "acorn": "^4.0.4",
+        "acorn-globals": "^3.1.0",
+        "array-equal": "^1.0.0",
+        "content-type-parser": "^1.0.1",
+        "cssom": ">= 0.3.2 < 0.4.0",
+        "cssstyle": ">= 0.2.37 < 0.3.0",
+        "escodegen": "^1.6.1",
+        "html-encoding-sniffer": "^1.0.1",
+        "nwmatcher": ">= 1.3.9 < 2.0.0",
+        "parse5": "^1.5.1",
+        "request": "^2.79.0",
+        "sax": "^1.2.1",
+        "symbol-tree": "^3.2.1",
+        "tough-cookie": "^2.3.2",
+        "webidl-conversions": "^4.0.0",
+        "whatwg-encoding": "^1.0.1",
+        "whatwg-url": "^4.3.0",
+        "xml-name-validator": "^2.0.1"
       },
       "dependencies": {
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@@ -1785,7 +1785,7 @@
           "integrity": "sha1-T4owBctKfjiJ90kDD9JbluAdLjE=",
           "dev": true,
           "requires": {
-            "hoek": "4.2.1"
+            "hoek": "4.x.x"
           }
         },
         "caseless": {
@@ -1800,7 +1800,7 @@
           "integrity": "sha1-qJ+7Ig9c4l7FboxKqKT9e1sNKf4=",
           "dev": true,
           "requires": {
-            "boom": "5.2.0"
+            "boom": "5.x.x"
           },
           "dependencies": {
             "boom": {
@@ -1809,7 +1809,7 @@
               "integrity": "sha512-Z5BTk6ZRe4tXXQlkqftmsAUANpXmuwlsF5Oov8ThoMbQRzdGTA1ngYRW160GexgOgjsFOKJz0LYhoNi+2AMBUw==",
               "dev": true,
               "requires": {
-                "hoek": "4.2.1"
+                "hoek": "4.x.x"
               }
             }
           }
@@ -1820,9 +1820,9 @@
           "integrity": "sha1-SXBJi+YEwgwAXU9cI67NIda0kJk=",
           "dev": true,
           "requires": {
-            "asynckit": "0.4.0",
+            "asynckit": "^0.4.0",
             "combined-stream": "1.0.6",
-            "mime-types": "2.1.18"
+            "mime-types": "^2.1.12"
           }
         },
         "har-validator": {
@@ -1831,8 +1831,8 @@
           "integrity": "sha1-ukAsJmGU8VlW7xXg/PJCmT9qff0=",
           "dev": true,
           "requires": {
-            "ajv": "5.5.2",
-            "har-schema": "2.0.0"
+            "ajv": "^5.1.0",
+            "har-schema": "^2.0.0"
           }
         },
         "hawk": {
@@ -1841,10 +1841,10 @@
           "integrity": "sha512-miowhl2+U7Qle4vdLqDdPt9m09K6yZhkLDTWGoUiUzrQCn+mHHSmfJgAyGaLRZbPmTqfFFjRV1QWCW0VWUJBbQ==",
           "dev": true,
           "requires": {
-            "boom": "4.3.1",
-            "cryptiles": "3.1.2",
-            "hoek": "4.2.1",
-            "sntp": "2.1.0"
+            "boom": "4.x.x",
+            "cryptiles": "3.x.x",
+            "hoek": "4.x.x",
+            "sntp": "2.x.x"
           }
         },
         "hoek": {
@@ -1859,9 +1859,9 @@
           "integrity": "sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=",
           "dev": true,
           "requires": {
-            "assert-plus": "1.0.0",
-            "jsprim": "1.4.1",
-            "sshpk": "1.14.1"
+            "assert-plus": "^1.0.0",
+            "jsprim": "^1.2.2",
+            "sshpk": "^1.7.0"
           }
         },
         "qs": {
@@ -1876,28 +1876,28 @@
           "integrity": "sha512-8H7Ehijd4js+s6wuVPLjwORxD4zeuyjYugprdOXlPSqaApmL/QOy+EB/beICHVCHkGMKNh5rvihb5ov+IDw4mg==",
           "dev": true,
           "requires": {
-            "aws-sign2": "0.7.0",
-            "aws4": "1.6.0",
-            "caseless": "0.12.0",
-            "combined-stream": "1.0.6",
-            "extend": "3.0.1",
-            "forever-agent": "0.6.1",
-            "form-data": "2.3.2",
-            "har-validator": "5.0.3",
-            "hawk": "6.0.2",
-            "http-signature": "1.2.0",
-            "is-typedarray": "1.0.0",
-            "isstream": "0.1.2",
-            "json-stringify-safe": "5.0.1",
-            "mime-types": "2.1.18",
-            "oauth-sign": "0.8.2",
-            "performance-now": "2.1.0",
-            "qs": "6.5.1",
-            "safe-buffer": "5.1.1",
-            "stringstream": "0.0.5",
-            "tough-cookie": "2.3.4",
-            "tunnel-agent": "0.6.0",
-            "uuid": "3.2.1"
+            "aws-sign2": "~0.7.0",
+            "aws4": "^1.6.0",
+            "caseless": "~0.12.0",
+            "combined-stream": "~1.0.5",
+            "extend": "~3.0.1",
+            "forever-agent": "~0.6.1",
+            "form-data": "~2.3.1",
+            "har-validator": "~5.0.3",
+            "hawk": "~6.0.2",
+            "http-signature": "~1.2.0",
+            "is-typedarray": "~1.0.0",
+            "isstream": "~0.1.2",
+            "json-stringify-safe": "~5.0.1",
+            "mime-types": "~2.1.17",
+            "oauth-sign": "~0.8.2",
+            "performance-now": "^2.1.0",
+            "qs": "~6.5.1",
+            "safe-buffer": "^5.1.1",
+            "stringstream": "~0.0.5",
+            "tough-cookie": "~2.3.3",
+            "tunnel-agent": "^0.6.0",
+            "uuid": "^3.1.0"
           }
         },
         "sntp": {
@@ -1906,7 +1906,7 @@
           "integrity": "sha512-FL1b58BDrqS3A11lJ0zEdnJ3UOKqVxawAkF3k7F0CVN7VQ34aZrV+G8BZ1WC9ZL7NyrwsW0oviwsWDgRuVYtJg==",
           "dev": true,
           "requires": {
-            "hoek": "4.2.1"
+            "hoek": "4.x.x"
           }
         },
         "tunnel-agent": {
@@ -1915,7 +1915,7 @@
           "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
           "dev": true,
           "requires": {
-            "safe-buffer": "5.1.1"
+            "safe-buffer": "^5.0.1"
           }
         },
         "uuid": {
@@ -1950,7 +1950,7 @@
       "integrity": "sha1-mnWdOcXy/1A/1TAGRu1EX4jE+a8=",
       "dev": true,
       "requires": {
-        "jsonify": "0.0.0"
+        "jsonify": "~0.0.0"
       }
     },
     "json-stringify-safe": {
@@ -2003,7 +2003,7 @@
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
       "dev": true,
       "requires": {
-        "is-buffer": "1.1.6"
+        "is-buffer": "^1.1.5"
       }
     },
     "lazy-cache": {
@@ -2019,7 +2019,7 @@
       "integrity": "sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=",
       "dev": true,
       "requires": {
-        "invert-kv": "1.0.0"
+        "invert-kv": "^1.0.0"
       }
     },
     "lcov-parse": {
@@ -2034,8 +2034,8 @@
       "integrity": "sha1-OwmSTt+fCDwEkP3UwLxEIeBHZO4=",
       "dev": true,
       "requires": {
-        "prelude-ls": "1.1.2",
-        "type-check": "0.3.2"
+        "prelude-ls": "~1.1.2",
+        "type-check": "~0.3.2"
       }
     },
     "load-json-file": {
@@ -2044,11 +2044,11 @@
       "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
       "dev": true,
       "requires": {
-        "graceful-fs": "4.1.11",
-        "parse-json": "2.2.0",
-        "pify": "2.3.0",
-        "pinkie-promise": "2.0.1",
-        "strip-bom": "2.0.0"
+        "graceful-fs": "^4.1.2",
+        "parse-json": "^2.2.0",
+        "pify": "^2.0.0",
+        "pinkie-promise": "^2.0.0",
+        "strip-bom": "^2.0.0"
       }
     },
     "lodash": {
@@ -2075,8 +2075,8 @@
       "integrity": "sha1-jDigmVAPIVrQnlnxci/QxSv+Ck4=",
       "dev": true,
       "requires": {
-        "lodash._basecopy": "3.0.1",
-        "lodash.keys": "3.1.2"
+        "lodash._basecopy": "^3.0.0",
+        "lodash.keys": "^3.0.0"
       }
     },
     "lodash._baseclone": {
@@ -2085,12 +2085,12 @@
       "integrity": "sha1-MDUZv2OT/n5C802LYw73eU41Qrc=",
       "dev": true,
       "requires": {
-        "lodash._arraycopy": "3.0.0",
-        "lodash._arrayeach": "3.0.0",
-        "lodash._baseassign": "3.2.0",
-        "lodash._basefor": "3.0.3",
-        "lodash.isarray": "3.0.4",
-        "lodash.keys": "3.1.2"
+        "lodash._arraycopy": "^3.0.0",
+        "lodash._arrayeach": "^3.0.0",
+        "lodash._baseassign": "^3.0.0",
+        "lodash._basefor": "^3.0.0",
+        "lodash.isarray": "^3.0.0",
+        "lodash.keys": "^3.0.0"
       }
     },
     "lodash._basecopy": {
@@ -2129,8 +2129,8 @@
       "integrity": "sha1-oKHkDYKl6on/WxR7hETtY9koJ9s=",
       "dev": true,
       "requires": {
-        "lodash._baseclone": "3.3.0",
-        "lodash._bindcallback": "3.0.1"
+        "lodash._baseclone": "^3.0.0",
+        "lodash._bindcallback": "^3.0.0"
       }
     },
     "lodash.isarguments": {
@@ -2151,9 +2151,9 @@
       "integrity": "sha1-TbwEcrFWvlCgsoaFXRvQsMZWCYo=",
       "dev": true,
       "requires": {
-        "lodash._getnative": "3.9.1",
-        "lodash.isarguments": "3.1.0",
-        "lodash.isarray": "3.0.4"
+        "lodash._getnative": "^3.0.0",
+        "lodash.isarguments": "^3.0.0",
+        "lodash.isarray": "^3.0.0"
       }
     },
     "lodash.toarray": {
@@ -2174,7 +2174,7 @@
       "integrity": "sha1-0aitM/qc4OcT1l/dCsi3SNR4yEg=",
       "dev": true,
       "requires": {
-        "js-tokens": "3.0.2"
+        "js-tokens": "^3.0.0"
       }
     },
     "makeerror": {
@@ -2183,7 +2183,7 @@
       "integrity": "sha1-4BpckQnyr3lmDk6LlYd5AYT1qWw=",
       "dev": true,
       "requires": {
-        "tmpl": "1.0.4"
+        "tmpl": "1.0.x"
       }
     },
     "marked": {
@@ -2198,11 +2198,11 @@
       "integrity": "sha1-Xq9Wi+ZvaGVBr6UqVYKAMQox3i0=",
       "dev": true,
       "requires": {
-        "cardinal": "1.0.0",
-        "chalk": "1.1.3",
-        "cli-table": "0.3.1",
-        "lodash.assign": "4.2.0",
-        "node-emoji": "1.8.1"
+        "cardinal": "^1.0.0",
+        "chalk": "^1.1.3",
+        "cli-table": "^0.3.1",
+        "lodash.assign": "^4.2.0",
+        "node-emoji": "^1.4.1"
       }
     },
     "merge": {
@@ -2217,19 +2217,19 @@
       "integrity": "sha1-hmd8l9FyCzY0MdBNDRUpO9OMFWU=",
       "dev": true,
       "requires": {
-        "arr-diff": "2.0.0",
-        "array-unique": "0.2.1",
-        "braces": "1.8.5",
-        "expand-brackets": "0.1.5",
-        "extglob": "0.3.2",
-        "filename-regex": "2.0.1",
-        "is-extglob": "1.0.0",
-        "is-glob": "2.0.1",
-        "kind-of": "3.2.2",
-        "normalize-path": "2.1.1",
-        "object.omit": "2.0.1",
-        "parse-glob": "3.0.4",
-        "regex-cache": "0.4.4"
+        "arr-diff": "^2.0.0",
+        "array-unique": "^0.2.1",
+        "braces": "^1.8.2",
+        "expand-brackets": "^0.1.4",
+        "extglob": "^0.3.1",
+        "filename-regex": "^2.0.0",
+        "is-extglob": "^1.0.0",
+        "is-glob": "^2.0.1",
+        "kind-of": "^3.0.2",
+        "normalize-path": "^2.0.1",
+        "object.omit": "^2.0.0",
+        "parse-glob": "^3.0.4",
+        "regex-cache": "^0.4.2"
       }
     },
     "mime-db": {
@@ -2244,7 +2244,7 @@
       "integrity": "sha512-lc/aahn+t4/SWV/qcmumYjymLsWfN3ELhpmVuUFjgsORruuZPVSwAQryq+HHGvO/SI2KVX26bx+En+zhM8g8hQ==",
       "dev": true,
       "requires": {
-        "mime-db": "1.33.0"
+        "mime-db": "~1.33.0"
       }
     },
     "minimatch": {
@@ -2253,7 +2253,7 @@
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
       "dev": true,
       "requires": {
-        "brace-expansion": "1.1.11"
+        "brace-expansion": "^1.1.7"
       }
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@@ -2536,7 +2536,7 @@
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@@ -2557,7 +2557,7 @@
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@@ -2606,7 +2606,7 @@
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@@ -2615,7 +2615,7 @@
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@@ -2626,7 +2626,7 @@
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@@ -2858,7 +2858,7 @@
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-        "spdx-license-ids": "3.0.0"
+        "spdx-exceptions": "^2.1.0",
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-        "jsbn": "0.1.1",
-        "tweetnacl": "0.14.5"
+        "asn1": "~0.2.3",
+        "assert-plus": "^1.0.0",
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+        "dashdash": "^1.12.0",
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@@ -2944,9 +2944,9 @@
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-        "is-fullwidth-code-point": "1.0.0",
-        "strip-ansi": "3.0.1"
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-        "object-assign": "4.1.1",
-        "read-pkg-up": "1.0.1",
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+        "arrify": "^1.0.1",
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+        "punycode": "^1.4.1"
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@@ -3068,7 +3068,7 @@
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+        "prelude-ls": "~1.1.2"
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@@ -3078,9 +3078,9 @@
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-        "uglify-to-browserify": "1.0.2",
-        "yargs": "3.10.0"
+        "source-map": "~0.5.1",
+        "uglify-to-browserify": "~1.0.0",
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@@ -3090,9 +3090,9 @@
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-            "cliui": "2.1.0",
-            "decamelize": "1.2.0",
+            "camelcase": "^1.0.2",
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@@ -3105,6 +3105,11 @@
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-        "spdx-expression-parse": "3.0.0"
+        "spdx-correct": "^3.0.0",
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       }
     },
     "verror": {
@@ -3127,9 +3132,9 @@
       "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"
+        "extsprintf": "^1.2.0"
       },
       "dependencies": {
         "assert-plus": {
@@ -3146,7 +3151,7 @@
       "integrity": "sha1-L3+bj9ENZ3JisYqITijRlhjgKPs=",
       "dev": true,
       "requires": {
-        "makeerror": "1.0.11"
+        "makeerror": "1.0.x"
       }
     },
     "watch": {
@@ -3176,8 +3181,8 @@
       "integrity": "sha1-0pgaqRSMHgCkHFphMRZqtGg7vMA=",
       "dev": true,
       "requires": {
-        "tr46": "0.0.3",
-        "webidl-conversions": "3.0.1"
+        "tr46": "~0.0.3",
+        "webidl-conversions": "^3.0.0"
       },
       "dependencies": {
         "webidl-conversions": {
@@ -3194,7 +3199,7 @@
       "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
       "dev": true,
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
       }
     },
     "which-module": {
@@ -3222,17 +3227,17 @@
       "integrity": "sha512-6w+3tHbM87WnSWnENBUvA2pxJPLhQUg5LKwUQHq3r+XPhIM+Gh2R5ycbwPCyuGbNg+lPgdcnQUhuC02kJCvffQ==",
       "dev": true,
       "requires": {
-        "errno": "0.1.7"
+        "errno": "~0.1.7"
       }
     },
     "wrap-ansi": {
       "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "resolved": "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
       "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"
       }
     },
     "wrappy": {
@@ -3265,19 +3270,19 @@
       "integrity": "sha1-eC7CHvQDNF+DCoCMo9UTr1YGUgg=",
       "dev": true,
       "requires": {
-        "camelcase": "3.0.0",
-        "cliui": "3.2.0",
-        "decamelize": "1.2.0",
-        "get-caller-file": "1.0.2",
-        "os-locale": "1.4.0",
-        "read-pkg-up": "1.0.1",
-        "require-directory": "2.1.1",
-        "require-main-filename": "1.0.1",
-        "set-blocking": "2.0.0",
-        "string-width": "1.0.2",
-        "which-module": "1.0.0",
-        "y18n": "3.2.1",
-        "yargs-parser": "4.2.1"
+        "camelcase": "^3.0.0",
+        "cliui": "^3.2.0",
+        "decamelize": "^1.1.1",
+        "get-caller-file": "^1.0.1",
+        "os-locale": "^1.4.0",
+        "read-pkg-up": "^1.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^1.0.1",
+        "set-blocking": "^2.0.0",
+        "string-width": "^1.0.2",
+        "which-module": "^1.0.0",
+        "y18n": "^3.2.1",
+        "yargs-parser": "^4.2.0"
       },
       "dependencies": {
         "camelcase": {
@@ -3292,9 +3297,9 @@
           "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"
           }
         }
       }
@@ -3305,7 +3310,7 @@
       "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
       "dev": true,
       "requires": {
-        "camelcase": "3.0.0"
+        "camelcase": "^3.0.0"
       },
       "dependencies": {
         "camelcase": {
diff --git a/package.json b/package.json
index 3b63720..91dae63 100644
--- a/package.json
+++ b/package.json
@@ -33,5 +33,8 @@
     "codeclimate-test-reporter": "^0.4.0",
     "jest": "18.1.0",
     "mock-spawn": "^0.2.6"
+  },
+  "dependencies": {
+    "untildify": "^3.0.3"
   }
 }
diff --git a/src/git2json.js b/src/git2json.js
index 390db61..2503a5c 100644
--- a/src/git2json.js
+++ b/src/git2json.js
@@ -1,5 +1,9 @@
+const { normalize } = require('path');
+const untildify = require('untildify');
 const parsers = require('./parsers');
 
+
+
 // Default fields
 // see https://git-scm.com/docs/pretty-formats for placeholder codes
 const defaultFields = {
@@ -37,7 +41,7 @@ function git2json({ fields = defaultFields, path = process.cwd(), paths = path }
   paths = Array.isArray(paths) ? paths : [paths];
   const args = paths.map(path => [
     '-C',
-    path,
+    normalize(untildify(path)),
     'log',
     `--pretty=format:%x01${prettyKeys}%x01`,
     '--numstat',