added release-it to the project.

.release-it.json

@@ -0,0 +1,13 @@
+{
+  "non-interactive": true,
+  "buildCommand": "npm run -s build",
+  "force": true,
+  "src": {
+    "push": true,
+    "tagName": "v%s",
+    "commitMessage": "%s",
+    "tagAnnotation": "",
+    "beforeStartCommand": "npm run -s test",
+    "afterReleaseCommand": "# npm run -s test:sauce"
+  }
+}

package.json

@@ -8,10 +8,9 @@
   "scripts": {
     "precommit": "lint-staged",
     "build": "rollup -c",
-    "bump:major": "npm version major",
     "deploy": "git push --no-verify && git push --tags --no-verify && npm publish",
     "lint": "eslint .",
-    "release:major": "npm login && run-s -s test build bump:major deploy test:sauce",
+    "release": "release-it",
     "test": "run-p -s test:node test:headless lint",
     "test:browser": "opn test/browser/index.html",
     "test:ci": "npm test -s && npm run -s test:sauce",
@@ -48,6 +47,7 @@
     "nock": "9.2.3",
     "npm-run-all": "4.1.2",
     "opn-cli": "3.1.0",
+    "release-it": "7.2.1",
     "rollup": "0.56.5",
     "rollup-plugin-copy": "0.2.3",
     "rollup-plugin-uglify": "3.0.0",