o rdkit gains a RDKit::common_properties namespace that contains common string value properties
o Dict.h and below gain getPropIfPresent that attempts to retrieve a property and returns
true/false on success or failure. This is used to optimize access.
o rdkit learns how to pass property keys by reference, not value.
A new namespace has been added to RDKit, common_properties
that contains the std::string values for commonly used
properties. This helps to avoid typos in string values
but also avoids a creation of std::strings from character
values. All accessors (has/get/clear and getPropIfPresent) now pass
the key by reference.
Additionally, getPropIfPresent removes the double lookup
of hasProp/getProp which can be a significant speedup
in the smiles and smarts parsers (10-20%)
remove const specifiers from return values in DataStructs
add initial pass at query-query matching for Atoms and Bonds
fix and test for sf.net issu 2738320
add Mol.AddRecursiveQuery() method to Mol
instead of using the property map interface.
A nice side-effect is that the wart of having to use property maps to loop over bonds or atom neighbors
is now gone.
This potentially breaks lots of client C++ code.
GraphMol/DistGeomHelpers/:
Support generating random initial coordinates of atoms as an alternative to embedding. This has so far only been tested on windows (all tests pass) and it needs to be optimized (particularly force field parameters).
Other changes here are primarily cosmetic code cleanups.
