added a list sliding panel to defend mode
slidinglayout
Implement remove mission functionality in Dashboard:
1. Remove mission 
2. Remove the obstacle create by user in that course
gray out the Set Guard funcation in DF Activne
and Mission Item when player is not in right distance.
fix a bit more
Change the DAO function to save eventually
tranmit to Imac
Shows special task
implement special task when user reach datasource.
added a list sliding panel to defend mode
slidinglayout
Merge remote-tracking branch 'origin/sliding' into sliding

Conflicts:
	src/uq/deco7381/runspyrun/activity/DefenceActivity.java
finish list adapter of sliding menu
sliding v1
sliding v2
test 2
slding panel
bix sliding menu
push notification
implement subscribe push notification