Added a performance output option you can access through the component.  Got rid of the discard call to optimize the default shader.  Cranked the quad display layer update time back down (since that wasn't the slowdown)
Cleaned up the icons for the WhirlyGlobe Component Test program.
Added sticker test in whirlyglobe component tester.  Switched over to zbuffer on then on mode for rendering in the Component.  Moved the skirts in the quad layer to their own drawables to facilitate this.
Found the black object problem.  Wasn't setting the context reliably in the Component view controller when creating textures.  Added a few startup images to the tester app.
Cleaned up some of the unsafe_unretained nonsense around the view state.  Should not longer be necessary (and if it is they can maintain their own version).
Merge branch 'develop' of git://github.com/mousebird/WhirlyGlobe into develop

Conflicts:
	WhirlyGlobeSrc/WhirlyGlobe-MaplyComponent/src/MaplyBaseViewController.mm