GitLab

include Changelog chapter in main document for cyclades-app and
webproject

- Disabled if DEBUG is set to False
- Configurable using WEBPROJECT_SERVE_STATIC
- To avoid the need of each synnefo django application to add new url
  entries for serving its own static files.

- new package snf-webproject
- moved basic django related settings in snf-webproject
- added new entry point utils to ease the extension mechanism of
  snf-webproject (urlpatterns, middleware, static_files, installed_apps)
- setup.py changes to keep up with the new entry points

split out of some commonly used code in a seperate package