- exported status bar notification functionality to 'org.droidplanner.android.notifications.NotificationHandler'.
- added Android Wear library jar, and started integration of existing status bar notifications with it.
replaced deprecated functionality: use of wakelock to maintain screen brightness.
updated 'Keep screen bright' preference's summary.
- refactored 'org.droidplanner.android.helpers.TTS' to 'org.droidplanner.android.notifications.TTSNotificationProvider', highlighting the fact the TTS class is part of the toolkit used to dispatch user (audible )notifications.

- updated NotificationHandler's role. The class is now the only interface by which notifications are dispatched from the app. Behind the scenes, the NotificationHandler class relays the dispatched notifications to the status bar, and audible notification providers.

- replaced the 'TTS' instance field in 'org.droidplanner.android.DroidPlannerApp' with a 'NotificationHandler' instance field.

- added convenience getter methods to 'NotificationHandler' in order to access the functionality provided by 'StatusBarNotificationProvider' and 'TtsNotificationProvider' while the refactoring is still in progress.