fix and test sf.net issue 280.

git-svn-id: svn://svn.code.sf.net/p/rdkit/code/trunk@2356 a5045d30-4826-4484-9c7f-6e55a06ddc77
Add Rogot Goldberg and AllBit similarity to C++ and the python wrapper.
(contribution from Sereina Riniker)


git-svn-id: svn://svn.code.sf.net/p/rdkit/code/trunk@2357 a5045d30-4826-4484-9c7f-6e55a06ddc77
Add support for merging recursive queries on the C++ side
(contribution from Sereina Riniker)

A pure Python version of this was in the tutorial material from the RDKit UGM.


git-svn-id: svn://svn.code.sf.net/p/rdkit/code/trunk@2358 a5045d30-4826-4484-9c7f-6e55a06ddc77