Let's be real, there's only modals in here.
Remove old homepage image from assets.
Make directory for fallback images.
Updated modal module.
Remove code optimization step.

We’re running this in client app optimization step, and it makes it
impossible to use debugger or console methods for debugging in Neue.
Remove QUnit from Travis CI task for now.
Bump IE8 fallback image dimensions due to performance issues with 1x1
tiled images.
Cache $document jQuery object.
Check more strictly against boolean type for `animated` argument.
Check whether modal is open based on value of $modal.
Fix flickering issue in Safari on modal open.
Make close button in a separate method to clean things up a bit.
Flickering issue in Safari.
Merge pull request #320 from DoSomething/modal-updates

Modal updates