Make CURS.remove-artifacts also remove .lock files
Make CURS.remove-artifacts also remove .lock files

Also, when on Windows, try a little harder to actually unlink files

rakudo/rakudo,salortiz/rakudo,tbrowder/rakudo,salortiz/rakudo,rakudo/rakudo,salortiz/rakudo,tbrowder/rakudo,labster/rakudo,MasterDuke17/rakudo,labster/rakudo,salortiz/rakudo,rakudo/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,tbrowder/rakudo,rakudo/rakudo,salortiz/rakudo,tbrowder/rakudo,rakudo/rakudo,rakudo/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,salortiz/rakudo,labster/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,labster/rakudo,labster/rakudo,labster/rakudo,tbrowder/rakudo