Added basic drag and drop, still need updates like multiple file upload and success/warning messages.
Updated UI.
Fixing forms and other UI changes
You can now drop to upload slides on the slides index page.
Added better drag and drop support
Dropped support for swf files.
Removed parameters, they are not needed anymore now that we aren't supporting swf files.
Merge branch 'master' into drag_and_drop

Conflicts:
	app/models/slide.rb
	app/views/layouts/_head.html.haml
Fix for Travis-CI tests.
A few more things I forgot from migrating to rail_config
Added support for custom slides. NOTE: it's using redactor editor for now but we will need a license before pushing to master and actually using it.
Updated user views.
Added upload progress bar to drop upload.
Added an action links config file.
You can now create sign slides from the sign show page.
Got sign#display working again
Prevent navbar from collapsing when screen gets smaller. Updated the department views.
Starting code cleanup and getting rid of pages that aren't being used.
More code clean up. Added floating alert messages.
rename delay column to interval to fix sidekiq conflict.