Merge pull request #4403 from RosettaCommons/JackMaguire/KillAtoPolarDesign
Renaming KillA2019 to PolarDesign2019
@Haddox found that KillA2019 doesn't actually Kill Alanines. In fact, it results in more alanines than MonomerDesign2019 (though nothing creates more alanines than "legacy", our old default until 8/2019). It also results in more polar residues, so the new name is PolarDesign2019.
This PR updates the database and integration tests to have the new name. Additionally, there is a check in FastRelax that will switch database queries for "KillA2019" with "PolarDesign2019". This protects us against poor advertising about the name change and allows users to keep the more fun name if they want (I probably will).