chore(build): create seperate builds for dev and dist (codymikol#161)

Seperate builds out, dist minifies and remove comments where as dev is pretty raw

package.json

@@ -14,7 +14,8 @@
     "test.integration": "npm run build && karma start --single-run",
     "travis": "npm run test.unit && npm run test.integration",
     "generate.changelog": "node scripts/release/generate-changelog.js",
-    "build": "webpack"
+    "build:dev": "webpack",
+    "build:dist": "NODE_ENV='production' webpack"
   },
   "repository": {
     "type": "git",

webpack.config.babel.js

@@ -1,9 +1,13 @@
 import path from 'path'
+import {optimize} from 'webpack'
 import {name, dependencies, devDependencies} from './package.json'
 
+const {UglifyJsPlugin} = optimize
+
 const rootPath = (nPath) => path.resolve(__dirname, nPath)
 const BUILD_PATH = './dist'
 const NODE_MODULES = rootPath('node_modules')
+const IS_BUILD = process.env.NODE_ENV === 'production'
 
 const CONFIG = {
   entry: './src/karma-webpack.js',
@@ -32,4 +36,12 @@ const CONFIG = {
     .concat(Object.keys(devDependencies))
 }
 
+if (IS_BUILD)
+  CONFIG.plugins = [
+    new UglifyJsPlugin({
+      comments: false,
+      sourceMap: false
+    })
+  ]
+
 export default CONFIG