Small updates: formatting, version, main file

These changes are simply a response to feedback left in the PR.
 - Formatting around a babel include in the webpack config has been
   updated to match the rest of the file.
 - The version bump has been moved to a MINOR bump that introduces
   non-breaking updates.
 - The main file has been selected as the unminified file.

package.json

@@ -1,8 +1,8 @@
 {
   "name": "wpcom",
   "description": "Official JavaScript library for the WordPress.com REST API",
-  "version": "4.7.1",
-  "main": "index.min.js",
+  "version": "4.8.0",
+  "main": "index.js",
   "author": "Automattic, Inc.",
   "contributors": [
     "Damian Suarez <rdsuarez@gmail.com>",

webpack.config.dist.js

@@ -1,4 +1,4 @@
-require("babel/register");
+require( 'babel/register' );
 
 const defaultConfig = require( './webpack.config.js' ),
 	webpack = require( 'webpack' ),