Fixes #86
remove extraneous print
Fixes #82
Fixes #90
handle isotopic H better from ctabs
should not really need to do this
Merge branch 'master' of https://github.com/rdkit/rdkit
Fixes #91
Fixes #72
Merge branch 'master' of https://github.com/rdkit/rdkit
add support for integer arithmatic ops on SparseIntVects. operator+ et al. do not yet work from python
Fixes #92
Merge pull request #93 from sriniker/master

c++ Implementation of the USR and USRCAT descriptors