#554 - removed final walkthrough from NUX
553 - Removed welcome screen from NUX
553 - renamed GeneralWalkthroughViewController to LoginViewController
553 - removed unused WPMobileStats constants
Scroll the UITableView to show a newly added post.
Fixes #354
#553 - Changed NUX sign in to have unique WPcom/WPorg forms
#553 - removed unnecessary code from LoginViewController
#553 - Renamed method in LoginViewController
#553 - Fixed LoginViewController layout problems on iPad
#553 - Renamed infoButton to helpButton
#558 - Removed language and site title fields from NUX account creation
Removed scrollview from CreateAccountAndBlogViewController
Renamed controls in CreateAccountAndBlogViewController
Refactored methods in CreateAccountAndBlogViewController
Merge branch 'develop' into issues/553
Merge branch 'develop' into issues/553
Merge branch 'develop' into issues/554
Removed WordPress logo from acount creation form to fit all fields on one screen
Improved layout of CreateAccountAndBlogViewController on 3.5 inch devices
Changed presentation of SupportViewController to modal when creating an account