Ignore compiled NDK stuff
Make NDK activity more robust

properly handle lifecycle events, etc.

Copypasta from NDK samples and openCV samples, but it's working fairly
well. Roughly twice as fast as java (2 FPS ;_;)
Prevent screen from turning off while running
Implement native opengl es2.0 skeleton

the green triangle has been drawn!
Fill entire screen with GL triangles

so I can draw the camera preview as a texture, once I figure out how
that works.
Draw camera preview and keypoints through GL texture

Well, almost. Something's wrong with my opengl calls. I forgot how
painful the API is.