This commit was manufactured by cvs2svn to create branch 'data_driven'.

svn path=/branches/data_driven/boost/development/py_cpp/; revision=8230
Added a little compile-time safety

svn path=/branches/data_driven/boost/development/py_cpp/; revision=8235
no message

svn path=/branches/data_driven/boost/development/py_cpp/; revision=8236
Removed old branches.

svn path=/branches/data_driven/boost/development/py_cpp/; revision=38550