Feature tests

This includes the outlines for all the spec files, as well as implementation on tests for Stores, luxComponent and luxControllerView.

Changes to lux include a small fix for using Stores with a custom storeProp and making actionCoordinator synchronous.

Also includes a small fix for webpack that was causing the carbon core error when running the example. (Note @ifandelse - you'll still need to clear out your example/public/js-dist folder after merging before the errors will go away)