Enable setuptools-27
mercurial: Synchronize with upstream. Enable python-27 version.
Merge pull request #412 from pyhalov/python27

Python27
Update mod_wsgi. Enable python 2.7 version
Merge pull request #413 from pyhalov/python27

Update mod_wsgi. Enable python 2.7 version
Deprecate Python 2.4
Merge pull request #414 from pyhalov/python27

Deprecate Python 2.4
Deprecate some more Python 2.4 modules
Merge pull request #415 from pyhalov/python27

Deprecate some more Python 2.4 modules
Obsolete system/xvm
Merge pull request #416 from pyhalov/python27

Obsolete system/xvm
Enable graphviz
Merge pull request #417 from pyhalov/python27

Enable graphviz
Enable logilab-astng, logilab-common,pylint
Merge pull request #418 from pyhalov/python27

Enable logilab-astng, logilab-common,pylint
Update argh. Enable Python 2.7 support
Merge pull request #419 from pyhalov/python27

Update argh. Enable Python 2.7 support
unittests2: Enable python-27 version
Merge pull request #420 from pyhalov/python27

unittests2: Enable python-27 version
Update psycopg2 and enable Python2.7 version