Add source maps

Author: carlobeltrame

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ### 1.2.1
 - Avoid sending a reload request as long as an equal reload request is still ongoing
+- Added source maps to the exported bundle
 
 ### 1.2.0
 - Fixed a bug involving the load promise of embedded collections

webpack.config.js

@@ -3,6 +3,7 @@ var webpack = require('webpack');
 var nodeExternals = require('webpack-node-externals');
 
 module.exports = {
+  devtool: 'source-map',
   externals: [nodeExternals()],
   entry: [
     './src/index'