Added alphaTest to hills
Ken McClure:  animated the quadcopter.dae model to fly up 3m for a second or two and then to fly 30m up after that.
Ken McClure:  Update to rover tracks.  Lowered the floating tracks section to be along the ground.  Also updated the rocks and boulder placement near the end track and mini rover position.
Make camera selector element blink in 1C
Removed test code
This Commit Adds VO

 L2VO4_Rover_m is now L2VO4_Control
Move a travel message up to the start of the scenario
Level 2-3 VO tweaks