Changeset 2223 for TI12-security/branches

Dependencies/m2crypto/setup.py: modifications to enable setup
to pick up command line or config file include_dirs,
library_dirs and libraries options. This will mean that it
will be more easily 'eggifiable'.

A customized Distribution class enables pick up of a
customized(!) build_ext class which ensures that swig_opts is
set to include the include_dirs settings.

Dependencies/m2crypto/setup.cfg: added this file with
include_dirs, library_dirs and libraries options to test
correct pick up from setup.py.