Merge pull request #370 from RosettaCommons/vmullig/genkic_sampling
Fixing an issue with GenKIC
Since GenKIC now respects the exit status of the pre-selection mover, it is possible for there to be no valid solutions after applying the pre-selection mover despite having a number of candidtates beforehand. This was causing GenKIC to fail, but should be handled gracefully, now. No test changes expected.