Improved v.2.0 version of the clean architecture sample

This version does not suffer from any problems related to object graphs being stored in unstable UI components. It introduces the ObjectGraphHolder and a new BaseDaggerActivity and Navigator, which contain most of the changes and improvements.

Fixed Http client, updated Android stuff

Same as v1.0 but now image loading works across all devices. Updated for latest Android version, support library and build tools.

Initial version of the demo app

Initial version of the demo app