acl bug
Fixed the privilege system; now the correct privileges are set
Fixed the way the client handles unknown privileges
Merge remote branch 'origin/master' into mixed_clients

Conflicts:
	views/beehub_directory.php
'Allow all' is now called 'allow manage' and 'deny all' is now called 'deny read' in the client
Updated webdav-php
Merge remote branch 'origin/master' into mixed_clients

Conflicts:
	views/beehub_directory.php
Another part of the previous merge and an updated header and footer
Merge remote branch 'origin/master' into mixed_clients