Add version and postversion tasks in package file

Author: jfusco

package.json

@@ -6,7 +6,9 @@
   "scripts": {
     "dev": "cross-env NODE_ENV=development gulp",
     "build": "cross-env NODE_ENV=production gulp dist",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "version": "git add .",
+    "postversion": "git push && git push --tags"
   },
   "devDependencies": {
     "babel-core": "^6.23.1",