Added to/from_python converters for [plain] char.
Reverted to original converters for un/signed char.

svn path=/branches/unlabeled-1.1.1.1.6/boost/boost/python/; revision=9046
Mapping of std::complex<T> <-> Python complex.

svn path=/branches/unlabeled-1.1.1.1.6/boost/boost/python/; revision=9305
Join ralf_grosse_kunstleve with HEAD

svn path=/branches/unlabeled-1.1.1.1.6/boost/boost/python/; revision=9444
Removed old branches.

svn path=/branches/unlabeled-1.1.1.1.6/boost/boost/python/; revision=38550