Big update

Added Add Class functionality with updated Server functions to handle
class additions. Reconfigured Server connectivity methods to behave on
multiple threads. Implemented a toast() function to streamline toasting
to the user. Removed several System.outs to clean up LogCat.
Fixed Timepicker Shenanigans

I changed the Timepickers to simpler validated EditText widgets. Also I
validated the “required” fields in the add class functionality
Merge branch 'master' of https://github.com/abouthillier/RhodyGuide

Conflicts:
	src/com/example/rhodyguide/FragmentMap.java