Fixed object_name usage.

The object_name attribute was used as both an identifier and a
label which sometimes require different values (e.g. hbacrule
vs. HBAC rule). The code that uses object_name as an identifier
has been changed to use the 'name' attribute instead. The values
of the object_name attribute have been fixed to become proper
labels.

Ticket #1217

ipalib/plugins/sudocmdgroup.py

@@ -51,8 +51,8 @@ class sudocmdgroup(LDAPObject):
     Sudo Group object.
     """
     container_dn = api.env.container_sudocmdgroup
-    object_name = 'sudocmdgroup'
-    object_name_plural = 'sudocmdgroups'
+    object_name = 'sudo command group'
+    object_name_plural = 'sudo command groups'
     object_class = ['ipaobject', 'ipasudocmdgrp']
     default_attributes = [
         'cn', 'description', 'member',