Build: Add release scripts

Author: nzakas

package.json

@@ -63,6 +63,9 @@
     "generate-regex": "node tools/generate-identifier-regex.js",
     "test": "npm run-script lint && node Makefile.js test && node test/run.js",
     "lint": "node Makefile.js lint",
+    "patch": "node Makefile.js patch",
+    "minor": "node Makefile.js minor",
+    "major": "node Makefile.js major",
     "browserify": "node Makefile.js browserify",
     "coverage": "npm run-script analyze-coverage && npm run-script check-coverage",
     "analyze-coverage": "node node_modules/istanbul/lib/cli.js cover test/runner.js",