Merge pull request #653 from RosettaCommons/vmullig/npro_not_a_donor
Removes DONOR property from Npro atom type
The Npro atom type was incorrectly listed as a hydrogen bond donor. This results in its Lennard-Jones radius being shrunk, and bad things happening in protocols that iterate over donors and whatnot. We've had the pull request to correct this open for three years, and have agreed at more than one meeting that it should be merged. Frank confirmed in 2016 that while the change does have a small effect on numerical values of scores, it doesn't alter his scientific benchmarks. It seems that everyone's on board with this being merged, so here we go.
***SCORING TESTS WILL SHOW SMALL NUMERICAL CHANGES*** Virtually all integration test trajectories are likely to change. Prepare for lots of observer e-mails as integration tests change. This is expected.