Activity java files with OnCreate methods, AndroidManifest.xml changes to create parent/child structure between classes to implement "Up" navigation, and created last of the xml layouts and refactored a few file names.  ** Changed the minimum sdk level in build.gradle from 15->16 to ensure "Up" functionality does not break on any device.
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/build.gradle