Merge pull request #495 from RosettaCommons/roccomoretti/xml_dualspace_fix
Fix behavior of XML FastRelax with dualspace.
The XML version of FastRelax completely ignored any commandline flags about dualspace and cartesian. This was counter-intuitive for people here in the Meiler lab. Fix this such that commandline flags are honored by default. (Explicit settings in the tag override, of course.)