Added pager for swiping fragments
Added v13 support library for PagerView
Persistent login functions properly
Fixed navigation drawer
Merge branch 'master' of https://github.com/BrennaBlackwell/spARK.git

Conflicts:
	spARK/src/edu/uark/spARK/LogInActivity.java
	spARK/src/edu/uark/spARK/MainActivity.java
	spARK/src/edu/uark/spARK/MapView_Fragment.java
	spARK/src/edu/uark/spARK/NewsFeed_Fragment.java
	spARK/src/edu/uark/spARK/Profile_Fragment.java