Babel transpilation ES6 src -> lib, jshint -> eslint

.eslintrc

@@ -0,0 +1,28 @@
+{
+  "parser": "babel-eslint",
+  "env": {
+    "es6": true,
+    "node": true
+  },
+  "ecmaFeatures": {
+    "destructuring": true,
+    "modules": true
+  },
+  "rules": {
+    "quotes": 0,
+    "curly": 0,
+    "camelcase": 0,
+    "semi": 0,
+    "eol-last": 0,
+    "key-spacing": 0,
+    "new-cap": 0,
+    "comma-dangle": 0,
+    "consistent-return": 0,
+    "no-proto": 0,
+    "no-use-before-define": 0,
+    "no-trailing-spaces": 0,
+    "no-multi-spaces": 0,
+    "no-mixed-requires": 0,
+    "no-underscore-dangle": 0
+  }
+}

CONTRIBUTING.md

@@ -4,7 +4,10 @@
 [tests](https://github.com/tgriesser/bookshelf/tree/master/test).
 
 * Use the same coding style as the rest of the
-[codebase](https://github.com/tgriesser/bookshelf/blob/master/bookshelf.js).
+[codebase](https://github.com/tgriesser/bookshelf/blob/master/src/bookshelf.js).
+
+* Make changes in the /src directory, running "npm run dev" which will kick off 
+transpilation from ES6 in the background
 
 * Files in the `/browser` folder are built automatically. You don't need to edit them.
 

bookshelf.js

@@ -5,4 +5,4 @@
 //     Bookshelf may be freely distributed under the MIT license.
 //     For all details and documentation:
 //     http://bookshelfjs.org
-module.exports = require('./lib')
+module.exports = require('./lib/bookshelf')