Merge branch 'issue/327' into issues/333
Replace sidebar with UITabBar
Add temporary icons for tab buttons
Push and pop all controllers from new navigation controller
Add ability to open settings from My Blogs
Remove blog list from Settings
Allow blog list to be edited
Add blog detail view controller and ability to 'Add a Site'
Hook up Posts, Pages, Comments, Stats, View Site, View Admin, and Edit Blog
Show number of pending comments
Remove MP6SidebarViewController and associated classes
Remove all sidebar panel-related functionality
Merge branch 'issues/355' into issues/333

Conflicts:
	WordPress/WordPress.xcodeproj/project.pbxproj
Improve look of blog views on iPad
Fix a Reader crash introduced with changes
Added WPTableViewCell for margins on iPad
Add margins to tables on iPad
Select Reader tab by default
Reduced height of blog list rows
Merge branch 'ipad-margins' into issues/333