Updated javadocs with basic header comments. Individual documentation for methods forthcoming.
Merged with Sarah's changes. Javadocs updated.
Merge branch 'master' of https://github.com/g-chag/CMPUT301F14T01-Team1Project

Conflicts:
	Yodelit/bin/classes/com/example/yodelit/HomeActivity$3.class
	Yodelit/bin/classes/com/example/yodelit/HomeActivity$4.class
	Yodelit/bin/classes/com/example/yodelit/HomeActivity$5.class
	Yodelit/bin/classes/com/example/yodelit/HomeActivity.class
	Yodelit/bin/classes/com/example/yodelit/User.class
	Yodelit/bin/classes/com/example/yodelit/UserActivity$1.class
	Yodelit/bin/classes/com/example/yodelit/UserActivity$2.class
	Yodelit/bin/classes/com/example/yodelit/UserActivity$3.class
	Yodelit/bin/classes/com/example/yodelit/UserActivity.class
	Yodelit/bin/classes/com/example/yodelit/YodelMainActivity$2.class
	Yodelit/bin/classes/com/example/yodelit/YodelMainActivity.class
	Yodelit/src/com/example/yodelit/UserActivity.java
	Yodelit/src/com/example/yodelit/YodelMainActivity.java