browserify levelDotJs

steps to creation:
1. npm install level-js
2. since browserify isn't global, add to package.json scripts:
     "ll": "browserify node_modules/level-js/index.js -o levelDotJs.js"
3. npm run-script ll and then moved levelDotJs.js to
     vendor/level.js directory

If browserify is global, #2 isn't needed and just run
browserify from terminal.