Minor changes. Formatting changes. Add some Python version environments for testing. Extended get_file_list to allow a list of globs rather than just a single glob.
parser.add_argument("--processors",help="Specify a path to a processor configuration file.",default=None)
# parser.add_argument("--prescript", help="Specify one or more prescripts to run (in order specified) with context of the compile.", default=[], action="append")
# parser.add_argument("--postscript", help="Specify one or more postsscripts to run (in order specified) with context of the compile.", default=[], action="append")