Merge pull request #408 from RosettaCommons/rfalford12/add_var_thk
Add thickness/steepness setters to MembraneInfo - Allow the user to adjust the membrane hydrophobic thickness and transition steepness, symmetrically about the center along the normal axis. This can be done programmatically and via the command line. Additionally, the thickness used by the PyMOL viewer is now linked to MembraneInfo (can also be changed separately)
No test changes expected