Fix for Issue #84 - Custom Notification Timings

Added multiple options for notification times rather than just on/off.

The default is off. - this may mean users with notifications on will need to choose the time setting they desire.

Also includes changes to get the application to build correctly using the latest version of the ADT eclipse plugin, as per http://commonsware.com/blog/2013/05/23/do-not-manually-modify-eclipse-build-path-except-now-r22.html