Gender selection in profile looks simpler now
Merge pull request #323 from carschroeder/simplify-gender-selection

Simpler gender selection in profile
Remove enquetebeteiligung stuff from default index page

This only affects the title in the current template structure.

First step for #305.
Fix or annotate all `== None` occurences

* In normal Python code, `== None` is replaced by `is None`.
* SQLAlchemy filter expressions containing `== None` (which is correct)
are annotated with `# noqa` to silent pep8.
Make SysV initstript executable by default (fixes #326)
i18n: extract new messages
i18n: New german translations
Merge pull request #328 from carschroeder/new-german-translations-10apr

New german translations
Merge branch 'develop' into feature-#241-buildout2
cleanup versions.cfg
ignore lib and local directories
updated boostrap.py, installation notes
added documentation how to upgrade dependencies
readded virtualenv to install adhocracy