Fix compilation warnings regarding ACLs

Also change the data structure of the JSON returned by [UIxAclEditor
aclsAction]. The user's displayName has been removed and replace by the
"cn" and "c_email" attributes. This will probably affect the Thunderbird
extensions.

UI/Common/UIxUserRightsEditor.h

@@ -1,8 +1,6 @@
 /* UIxUserRightsEditor.h - this file is part of SOGo
  *
- * Copyright (C) 2007-2010 Inverse inc.
- *
- * Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
+ * Copyright (C) 2007-2014 Inverse inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -48,8 +46,8 @@
 - (void) removeRight: (NSString *) right;
 - (void) removeAllRightsFromList: (NSArray *) list;
 
-- (void) prepareRightsForm;
-- (void) updateRights;
+- (NSDictionary *) userRightsForObject;
+- (void) updateRights: (NSDictionary *) newRights;
 
 @end