Do not load salvation groups by default.

There is a bug in pickling of the salvation groups, and there is no reason to load them by default.

Author: keceli

rmgpy/data/rmg.py

@@ -76,7 +76,7 @@ def load(self,
              kineticsDepositories=None,
              statmechLibraries=None,
              depository=True,
-             solvation=True,
+             solvation=False,
              ):
         """
         Load the RMG database from the given `path` on disk, where `path`