Added comments, cleaned up code formatting.

Signed-off-by: Hannah <hyoung20@gmail.com>

	modified:   res/values/dimens.xml
	modified:   src/com/catalyst/android/birdapp/CameraActivity.java
	new file:   test/com/catalyst/android/birdapp/test/gps_utility/GPS_UtilityTest.java
	modified:   test/com/catalyst/android/birdapp/utilities/CameraUtilityTest.java