Added sidebar, fixes to API, updated slideshow module.

Renamed AppServiceProvider to MissingServiceProvider.

Cleaned MissingServiceProvider.

Fixed university-profile state from redirecting to the homepage when accessed directly.

Added a non-RESTful Slideshow controller.

Organized Slideshow controllers (back-end)

Added (front-end) slideshow controller & service.

Included slideshow in main.home state resolves.

Fixed a slideshow eloquent repository typo.

Updated slideshow seeder.

Updated front-end templates with the fetched slideshow from the API.