Remove usersguide.
Rename roll test directory.  Get test working.
Support version in ROLLCOMPILER make var.
Clean up.
Normalize version.mk contents.
Replace w/conventional linux.mk.
Support ROLLPY make var.
Renamed to roll-test.
Normalize version.mk contents.
Support ROLLPY make var.  Use conventional processes to set up compiler, mpi, etc.
that report versions to build log.