Fix documentation of residues in pybel
Merge pull request #4 from mwojcikowski/pybel-residue-devel

Fix documentation of residues in pybel
Try again - fix bug in --filter parsing
Merge branch 'master' of https://github.com/openbabel/openbabel
GUI with  wxWidgets not using std streams

Link errors with Visual Studio which may have been moving to VC10 or
wxWidgets 2.9.2. Fixed by compiling wxWidgets with wxUSE_STD_IOSTREAM=0,
and replacing wxStreamToTextRedirector() in OBGUI.cpp.
Ignore .pyc, .pyo, etc. from python testing.
Change output flag to avoid stomping on 'm' option.

Avoids error messages from OBConversion about the override
of the 'm' output flag.
Clear the ifs stream flags in the outformat reader.

Otherwise the real format reader fails to read the stream in
rare instances.
Fix tautology reported by clang C++.

If statement with (strlen(line) >= 0) is always true.
Revised to > 0, which was the intended meaning.
Patch from Magnus Lundborg reported to mailing list.

pH model on amidine using -p 7.4 would leave the result uncharged.
Fix potential NULL deference errors indicated by Clang.

Added some "defensive" statements to check for NULLs before
dereferencing. Fixes issues flagged by Clang static analyzer.
Merge pull request #5 from dlonie/clear-stream-flags

Clear the ifs stream flags in the outformat reader.
PkgConfig should not be required - fail gracefully

If PkgConfig is not available then we cannot find Cairo, but this should
fail gracefully so that systems without Cario can simply disbale options.
Merge pull request #6 from cryos/pkg-config-tweak

PkgConfig should not be required - fail gracefully
Patch from Roger Sayle. Reading/writing isotopes with CDXML.
Merge branch 'master' of https://github.com/openbabel/openbabel