Switch to use depth/image_rect instead of depth/points for efficiency.
It takes ~ 1/4th the cpu power to do this version.
This has the added benefit of not requiring PCL as a dependency.
Add support for joystick override of follower
This allows joystick button 5 to toggle follower on and off.
It simply adds another input to the mux which sends zero
velocity with a slightly higher priority than the follower.
the sim directory no longer exists
It was implicitly removed in #142