Refactored Reader's new design for reuse elsewhere
- Moved the view hierarchy and layout logic to ReaderPostView
- Gutted ReaderPostTableViewCell and made it use ReaderPostView instead
Start of major refactoring of Reader's detail view
Refactor button actions as delegate methods
Make detail view use new delegate methods
Move reader tap actions to delegate methods
Remove ReaderDetailView now that it has been generalized away
Fix some videos not opening properly inline
Merge branch 'develop' into feature/602-reader-detail

Conflicts:
	WordPress/Classes/ReaderPostDetailView.m
	WordPress/Classes/ReaderPostDetailViewController.h
	WordPress/Classes/ReaderPostDetailViewController.m
	WordPress/Classes/ReaderPostTableViewCell.m
	WordPress/WordPress.xcodeproj/project.pbxproj
Replaced deprecated sizeWithFont
Code format cleanup
Removed iOS6-specific code
Don't allow selection of content 'row'
Made Reader detail display at narrower width on iPad
Format fixes for iPad
Remove KVO for isReblogged
Make image caching resilient to rounding and only use widths
Various sizing fixes, disable scroll detection for now
Override fetched results controller to prevent table updates from context merges (for now)
Remove iOS6-specific code
Change iPad tables to have a fixed and wider width