Added information for graduate students on their popup -- closes #53
Combined if checks.
Removed picking one featured profile in the model. We're going to let Backbone handle this so it can determine which feature is best to use (pick randomly, then make sure there are images associated with it)
Sent all featured profile IDs to backbone ProfileGridView to decide which profile becomes the featured one.
Brought back the homepage model, so that the homepage accent color is always the default.
Added logger to 404 controller instantiation.
Cycled through the profiles that can be featured. One-by-one, go through them until you find a profiles with images assigned.
Set the total number of profiles to display in the grid at the top of the view.
Modified getThumbnailViews()

* Made sure number of profiles requested is less than or equal to
the number of profiles in the profiles collection
* Go through all the profiles until you find enough profiles (with
images) to satisfy the number requested OR you run out of available
profiles
Merge branch 'develop' of git://github.com/johnshopkins/machado into develop