Unstable, could hang up on chat select.

antonyt/InfiniteViewPager used partially.

Dialogs do not use support libraries.

New class MessageNotificationCreator. NotificationManager refactored. Notification builder used for all notifications.
New icons for notifications. Old removed.

NotificationManager: updateNotifications uses Notification builder now. BigTestStyle used for single message notification.

chat_notification layouts removed.

GroupListActivity: options menu rewritten using xml resource, icon added (for ContactAdd and ContactEdit activities).

Key phrase adding implemented as "full screen" dialog with "close" and "save" buttons on the action bar.
Separate activities PhraseAdder for phrase adding, PhraseEditor - for editing, BasePhrasePreferences - base activity for both.
BaseSettingsFragment: preferences don't saved on pause! derived class should call saveChanges explicitly.