Merge pull request #1197 from RosettaCommons/JWLabonte/sugars/input
Carbohydrates: Allowing glycans with sialic acids to be created by sequence
This merge will fix a bug preventing sialic acids from being read into Rosetta by IUPAC sequence. This was caused by the fact that the handedness designation is inherent to the 3-letter code for some codes, such as Neu.