Get authToken from account
Migrated some WordPressComApi calls to WPAccount
Don't sync notification settings on app active
Merge branch 'feature/22-accounts' of github.com:wordpress-mobile/WordPress-iOS into issue/22-remove-comapi-warnings

Conflicts:
	WordPress/Classes/Blog.m
	WordPress/Classes/NotificationsManager.m
	WordPress/Classes/WPMobileStats.m
	WordPress/Classes/WPcomLoginViewController.m
	WordPress/Classes/WordPressAppDelegate.m