3.18.1 upgrade
	scons still requires python2, and some of the gps
		 utilities no longer work with python2
	The 0001-workaround-for-scons-using-python2.patch
		explicitly uses python3 as the interpreter
	3.18.1 insists on putting the python utilites in
		/usr/local - we manually move them as
		part of the _py subpackage