commit video overlay example to a branch
- naming change for shader loading.
- dynamically assigning screen size and texture size.
- removed unused header.
add in v2.0 libs
added video overlay texture..
- clean up the experimental code
Merge branch 'master' into feature/v2.0_video_overlay_example
- update so file to latest.
- change target sdk to 17 to 19
- change mk file to fit new so.
- clean up c code.
Merge branch 'master' into feature/v2.0_video_overlay_example

Conflicts:
	TangoDevUpdate-0618/libs/libtango_service_api.so
- adopt 0902 changes.
- make full-screen.
- rename application
- rename namespace
Merge pull request #19 from googlesamples/feature/v2.0_video_overlay_example

Feature/v2.0 video overlay example