Kozea/Radicale — pull request #55 by jaesivsm (2013-08-28 12:03:57+00:00)
Title: making radicale support authenticated user from apache

I did a small dev so Radicale can trust a user authentified by apache.

By specifying in the ```[auth]``` section ```type = apache```, Radicale will trust the authentication as passed by apache in the request (see the ```REMOTE_USER``` key).

Perks :
* Leave the auth part to apache.
* Apache won't execute any python for a non authentified user.
* We'll have the authentified user name in the apache logs.