Added ability to edit existing lavatory data.
Merge branch 'beta' of github.com:swansond/LavatoryLocator into beta

Conflicts:
	src/edu/washington/cs/lavatorylocator/activity/AddLavatoryActivity.java
	src/edu/washington/cs/lavatorylocator/activity/LavatoryDetailActivity.java
	src/edu/washington/cs/lavatorylocator/activity/MainActivity.java
	src/edu/washington/cs/lavatorylocator/network/GetLavatoryReviewsRequest.java