Pax-Runner allows the user to supply a URL to a file containing additional arguments by using the "--args" option. We should support this with pax:provision, using the -Dargs property to be consistent with the Pax-Runner option. For convenience, if the -Dargs value does not have a valid scheme we'll assume it's local and turn it into a file URL. Example: mvn pax:provision -Dargs=conf/development.txt ==> pax-run --args=file:conf/development.txt