Updated news version to 4
Added core data skeleton for news search recents.  Modeled after Map search recents
Added Recent Search Popover when search button clicked
Recent search term is added to the end of the list so list of recents is returned in reverse order so latest recent search is on top
Merge branch 'refs/heads/3.6/ipad-news-recent-search-popover' into 3.6/ipad-news-search

Conflicts:
	MIT Mobile.xcodeproj/project.pbxproj
	Modules/News/iPad/View Controllers/MITNewsiPadViewController.m