Fixed feature tracking bug and a few other mistakes as well as some code cleanup.
auto_control: added to project but commands are still buggy
flownav: template matching works much better now! (used normalized image
patches to match templates).
framebuffer: fixed issue with image feed getting all screwy and showing
images out of order. This was fixed by removing the image queue - I
believe it contained some synchronization issues.
drone_control: added a command queue