separate scratch from chill entrypoint, and move it into a specific module

src/Bundle/ChillMainBundle/Resources/public/main.js

@@ -21,9 +21,6 @@ global.chill = chill;
 /*
  * load requirements in chill entrypoint
  */
-
-require('./sass/scratch.scss');
-
 require('./css/chillmain.css');
 require('./css/pikaday.css');