fmcs: use the zero bond type instead of other
Added option to return isomeric SMILES to frame when loading SDF
Added option to use isomeric SMILES in SaveSMILESFromFrame
from rdkit.Chem import MolToSmiles and fixed AddMurckoToFrame accordingly
Merge pull request #368 from AlexanderSavelyev/master

fmcs: use the zero bond type instead of other
Merge pull request #369 from samoturk/isomeric_fix

Isomeric fix in PandasTools
remove some compile warnings
disable building of FMCSTest, which only works on a few systems, and remove a bunch of compiler warnings for when it is built