Adds release script; closes #15

Author: bkrem

package.json

@@ -17,7 +17,7 @@
     "docs": "npm run docs:react && npm run docs:util",
     "docs:util": "jsdoc2md src/util/index.js > docs/util/util.md",
     "docs:clean": "rimraf docs/components/* && rimraf docs/util/*",
-    "prep": "np --no-publish"
+    "release": "npm run test && npm run build && npm run docs && git commit -a && np"
   },
   "jest": {
     "collectCoverageFrom": [