Stirng.isEmpty() not supported on android. Chnages for this - also usern
ame setting from email and launch icons for android updates.
TutorNavigator instead of subgoalNavigator and some other cleanups.
colored label in tutornavigator, about version added
TutorNavigator cleaned up to consolidate all tutor related GUI for
navigation except Next, Prev Buttons
Cleaning up domain into an enum
ok state - not very elegant yet.
user.jps added to show stats.
user.jsp now shows leaf level goals for activity 1 and corresponding
stats.
need to do for other levels
need to convert to a chart
user jsp updated to draw chart