Fixed authentication for anonymous users
Fixed partially anonymous authentication
Adds the committer in the config + python3 support
Adds the committer in the config + python3 support
Merge branch 'git' of github.com:cristen/Radicale into git

Conflicts:
	config
Merge branch 'authentication' of github.com:cristen/Radicale into authentication
Fix compatibility between python2 and 3