rdkit/rdkit: 2016_09_3 (Q3 2016) Release

Release_2016.09.3 (Changes relative to Release_2016.09.2) Acknowledgements: Peter Gedeck, Brian Kelley, Matt Swain, Paolo Tosco, Hsiao Yi Bug Fixes: Fixes #1162 (resMolSupplierTest failing with boost 1.62) (github pull #1166 from ptosco) Add Contrib dir to RDPaths (github pull #1176 from mcs07) Add information on building RDkit on macOS using conda (github pull #1180 from gedeck) new sequence capabilities not available from either Python or Java (github issue #1181 from greglandrum) Gets the reaction sanitization code working correctly on 32bit systems (github pull #1187 from greglandrum) Adds RDProps to c# wrapper (github pull #1188 from bp-kelley) fix compatibility with PostgreSQL 9.2 (github pull #1189 from greglandrum) Fixes memory leak in closeCheckMolFiles, fixes valgrind read issue in… (github pull #1200 from bp-kelley) Support valences of 4 and 6 for Te (github issue #1204 from hsiaoyi0504) Stereochemistry not output to SMILES when allHsExplicit=True (github issue #1219 from greglandrum