Python 3 support and minor fixes.

radicale/acl/__init__.py

@@ -25,7 +25,7 @@ This module loads a list of users with access rights, according to the acl
 configuration.
 """
 
-from .. import config
+from radicale import config
 
 _acl = __import__(config.get("acl", "type"), locals(), globals())
 

radicale/acl/fake.py

@@ -24,7 +24,7 @@ Fake ACL.
 Just load the default user set in configuration, with no rights management.
 """
 
-from .. import config
+from radicale import config
 
 def users():
     """Get the list of all users."""

radicale/acl/htpasswd.py

@@ -26,7 +26,7 @@ Load the list of users according to the htpasswd configuration.
 
 # TODO: Manage rights
 
-from .. import config
+from radicale import config
 
 def users():
     """Get the list of all users."""