code cleanup

git-svn-id: svn://svn.code.sf.net/p/rdkit/code/trunk@2467 a5045d30-4826-4484-9c7f-6e55a06ddc77
plug a fingerprint core leak in the SWIG wrappers

git-svn-id: svn://svn.code.sf.net/p/rdkit/code/trunk@2468 a5045d30-4826-4484-9c7f-6e55a06ddc77
remove some warnings from clang.

At this point the only warnings are connected to the RNG parameterization in Fingerprints.cpp

git-svn-id: svn://svn.code.sf.net/p/rdkit/code/trunk@2469 a5045d30-4826-4484-9c7f-6e55a06ddc77