Changed Android SDK version to 16

Target SDK version now matches the OUYA.
Merged changes from post on Monkey community forums

These changes were originally summarized by DrT on the Monkey community
forums.

http://monkeycoder.co.nz/Community/posts.php?topic=4760
Fixed style

Corrected a few capitalization inconsistencies.
Merge pull request #1 from jasongosen/controller-testing

Alternative controller interface