add support for building major releases

README.md

@@ -147,19 +147,15 @@ the overall coverage at the top of the README is updated, along with the summary
 
 ## <a name="release"></a>Release
 
-#### Build a minor release
-```
-$ npm run release
-```
+#### Build a release
+Use one of the following, depending on what kind of release you need to build:
+- major release: `npm run release-major`
+- minor release: `npm run release-minor`
+- patch release: `npm run release-patch`
 
 *NB: If the release script fails to run, check that there are no files modified locally,
 in which case commit them or clean them up before running the release.*
 
-#### Build a patch release
-```
-$ npm run release-patch
-```
-
 ## Publish
 
 To publish a release, first [build it](#release) - that creates the dist file(s),

package.json

@@ -10,9 +10,11 @@
     "minify": "uglifyjs src/index.js --compress --mangle --warn --output dist/index.min.js",
     "build": "npm run clean && npm run test-coverage && mkdir dist && cp src/index.js dist/index.js",
     "release-patch": "npm run clean && npm run test-coverage && mkdir dist && cp src/index.js dist/index.js && npm run version:bump-patch --silent",
-    "release": "npm run clean && npm run test-coverage && mkdir dist && cp src/index.js dist/index.js && npm run version:bump-minor --silent",
+    "release-minor": "npm run clean && npm run test-coverage && mkdir dist && cp src/index.js dist/index.js && npm run version:bump-minor --silent",
+    "release-major": "npm run clean && npm run test-coverage && mkdir dist && cp src/index.js dist/index.js && npm run version:bump-major --silent",
     "version:bump-patch": "npm version patch --silent",
     "version:bump-minor": "npm version minor --silent",
+    "version:bump-major": "npm version major --silent",
     "version:add": "echo \"/* Version: $(npm run version:extract --silent) , Build time: $(date -u '+%Y-%m-%d %H:%M:%S') UTC */\n$(cat dist/index.js)\" > dist/index.js",
     "version:extract": "cat package.json | grep version | head -1 | awk -F: '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]'"
   },