Added volley library and a new activity with skeleton code for network request
Changed to using volley.jar, added base clases for group info, working group creation activity.
Added database support along with test activity for database access, reorginized files and added comments
minor changes
Merge branch 'backend'

Conflicts:
	Grouped/AndroidManifest.xml
	Grouped/gen/com/example/grouped/R.java
	Grouped/res/layout/activity_startup.xml
	Grouped/res/values/strings.xml
	Grouped/src/com/example/grouped/ConfirmationPageActivity.java
	Grouped/src/com/example/grouped/DisplayMessageActivity.java
	Grouped/src/com/example/grouped/StartUp.java
End iteration 1
Updated GroupedNetworkData
Added datahandler methods
Added remainder of Server API calls to GroupedNetworkData class.
changes for merge