[WIP] Apache2 mod_wsgi daemon settings


Now we are using the default setting for Apache2's *mod_wsgi* daemon, which are `processes=1` and `threads=15`. With theses settings, a simple test on a service with *ab* reaches its limit with `-c=20`. Using higher values improves the situation, but further tests are needed.

http://code.google.com/p/modwsgi/wiki/ConfigurationDirectives#WSGIDaemonProcess

Any hints welcome.