Brings back build settings

Author: chollier

.gitignore

@@ -8,6 +8,3 @@ test-built/*
 docs/*.html
 docs/assets/bundle.js
 lib/*
-cjs
-amd
-bower_components

package.json

@@ -7,7 +7,7 @@
  "type": "git",
  "url": "http://github.com/quri/react-bootstrap-datetimepicker"
  },
- "main": "./cjs/DateTimeField.js",
+ "main": "./lib/DateTimeField.js",
  "scripts": {
  "build-npm": "jsx -x jsx ./src/ ./lib/",
  "build": "NODE_ENV=production webpack --output-file react-bootstrap-datetimepicker.js",