Keith: Added rudimentary ListView stuff
Added stub methods for all unimplemented actions in the action bars for
each Activity (the stub methods display a Toast). Added comments. Made
formatting consistent across all Activities (using Eclipse's Source >
Format menu option).
Merge branch 'UI' of https://github.com/swansond/LavatoryLocator.git
into UI

Conflicts:
	src/edu/washington/cs/lavatorylocator/MainActivity.java
Made the AddReviewActivity scrollable in case the user enters a very
long review. Cleaned up string resources as well as made them
consistent.
Finished the UI for the AddLavatoryActivity.
Moved everything from ListViewActivity to MainActivity.
Removed menu XML file for ListViewActivity, as that doesn't exist
anymore.
Added "Got2Go" icon to action bar.
Got most of the loaders and tasks working. Only the loader for getting
lavatories and the task for requesting the addition of a lavatory don't
work yet. That could just be the php's fault so I'm committing anyway.
Adjusted layout margins.
Fixed layout margins for the review item row.
Merged with UI branch, resolved conflicts, added comments.
Final merge with UI and commit before pull request.