iOS 8 iPad Story No Image Dek Wrapping

When removing customClass "MultiLineLabel" labels misbehave.  We need this custom class to be compatible with iOS 7.

Fixes #226
Xcode 6 changes xibs

Xcode 6 changes xibs.
Removes autoresizingMask.
Adds simulatedMetricsContainer.
Fix misplacements of views.
Added top/bottom padding on iPad news stories

Added 30px of top and bottom padding on iPad news detail view.
Change gallery image background color back to black.

Change gallery image background color back to black.
Image in Gallery view should be zoomed to fit screen but keep aspect ratio.
Merge pull request #229 from MIT-Mobile/3.6/NewsStoryHeaderReusableView

NewsStoryHeaderReusableView in project file misplaced during merge
Merge pull request #228 from MIT-Mobile/3.6/news-Oct8-changes

3.6/news oct8 changes
Merge branch 'refs/heads/3.6/ipad-news' into 3.6/news-search

Conflicts:
	Modules/News/iPad/Views/XIBs/MITNewsSearchController.xib
Need to keep height cache around for estimatedHeightForRowAtIndexPath when we switch from search to main/category view or we cannot scroll back to position we were at last.