message: add an 'npm run release' script
diff: {
  "name": "blockstack-auth",
  - "version": "0.2.2",
  + "version": "0.2.1",
  "description": "Blockstack Auth Library",
  "main": "lib/index",
  "scripts": {
  "test": "npm run compile; node lib/test/unitTests.js",
  "prepublish": "npm run compile",
  "browserify-test": "npm run compile; node lib/test/browserifyTests.js",
  - "browserify-app": "npm run compile; browserify lib/test/browserifyApp.js -o lib/test/bundle.js"
  + "browserify-app": "npm run compile; browserify lib/test/browserifyApp.js -o lib/test/bundle.js",
  + "release": "npm version patch && npm publish"
  },
  "repository": {
  "type": "git",
  