User Authentication added
Adding authorization
Messed up on last one.
Merge branch 'master' of https://github.com/marlin-gingerich/kluster-android

Conflicts:
	Kluster/AndroidManifest.xml
	Kluster/src/com/cs446/kluster/MainActivity.java
	Kluster/src/com/cs446/kluster/json/JSONReader.java
	Kluster/src/com/cs446/kluster/net/sync/SyncAdapter.java
	Kluster/src/com/cs446/kluster/network/GETRequest.java