Fix file permissions
Remove buildout configs
Add pip requirements file
Replace manage.py with a working version
Cleanup the settings module

The settings module is now settings.base. It should contain general
settings which are site-independent.
The envvar PRAKTOMAT_SETTINGS is introduced to specify the site specific
settings module which should be loaded by settings.base. Its default
value is 'devel', which is shipped with this distribution and works out
of the box.
Add template for local.py
Update README to reflect latest changes