More bug fixes for vmcd and friends: * GNUmakerules: Set SRCDIR as an environment variable so every test doesn't have to be a template. * robots/emc/emcd.c: Correctly handle a vision position that is dead-on the initial position. XXX Turn off orientation matching for now, it is too strict at the moment so that it favors close orientation over close position. * robots/mtp/mtp.c: Fix some broken printfs in mtp_print_packet. * robots/vmcd/GNUmakefile.in: Add another test. * robots/vmcd/test_emcd2.config, robots/vmcd/test_vmcd2.pos, robots/vmcd/etst_vmcd2.sh: A test that matches the initial positions of two robots. * robots/vmcd/test_vmcd.pos: Reduce the distance the robot moved between frames. * robots/vmcd/vmcd.c: Fix a bugfix and some formatting changes.