Swich tabs and show post list when publishing a new post.
Better method name. Add a showMeTab method to the app delegate.
Merge branch 'develop' of github.com:wordpress-mobile/WordPress-iOS into issues/823-show-post-list

Conflicts:
	WordPress/Classes/WordPressAppDelegate.m
Merge pull request #824 from wordpress-mobile/issues/823-show-post-list

Swich tabs and show post list when publishing a new post.