Added screen to add new grab list.
Merge branch 'master' of https://github.com/scotthso/Grab

Conflicts:
	app/src/main/java/scottso/grab/MainActivity.java
first commit onto this branch
added new options to drawer
Merge branch 'drawer' of https://github.com/scotthso/Grab into drawer

Conflicts:
	app/src/main/java/scottso/grab/LoginActivity.java
	app/src/main/java/scottso/grab/MainActivity.java
	app/src/main/res/layout/activity_main.xml
Integrated functionality with drawer.