updated page controller

using view inside page controller at index 0
added comments
finished moving gradients

they now get added to a view that is layered on top of indicator dots
also fixed route on fakeDataRequestor to get feeds
added animated page control hiding for 'middle' pages
cleaned up page control and home view controller

page control page is now set when current_item is updated
removed code for previous functionality using cell rendering
stretched collection view on storyboard to take whole window
added protocol that is not yet being used