Merge pull request #224 from RosettaCommons/jkleman/debug_interface_scores
Jkleman/debug interface scores
* DockingPrepackProtocol: move membrane axis from DockingPrepackProtocol to metrics
* write_additional_pdb_pdb: deleted membrane functionality because not needed any more
* DockingSlideIntoContact: slide axis is now in the membrane for membrane proteins
* MembranePositionFromTopology: added error checking for empty SpanningTopology
* compute_structure_based_membrane_position: added error checking for empty SpanningTopology
* added option for local refine to MPDockingMover
integration test changes: all ok: mostly added (useful) Tracer statements for docking, few numerical instabilities