Minor correction to script filenames for training.
Issue #43 A single block of collisions.

Removed first block of collisions from References. Remaining block is
performed with 600 gm inflight and 400 gm on the ground.
Makefile dependencies for compiler.

Changed the makefile dependencies so that the scripts are recompiled
whenever the simulator/compiler is modified.
Issue #57 Close locker picture.

Change the picture to show the locker as closed when the subject is
prompted to do so.