Increase # of chars in users and groups to 255 and default username to 32.

ticket 434

ipalib/plugins/group.py

@@ -98,9 +98,9 @@ class group(LDAPObject):
 
     takes_params = (
         Str('cn',
-            pattern='^[a-zA-Z0-9_.][a-zA-Z0-9_.-]{0,30}[a-zA-Z0-9_.$-]?$',
+            pattern='^[a-zA-Z0-9_.][a-zA-Z0-9_.-]{0,252}[a-zA-Z0-9_.$-]?$',
             pattern_errmsg='may only include letters, numbers, _, -, . and $',
-            maxlength=33,
+            maxlength=255,
             cli_name='name',
             label=_('Group name'),
             primary_key=True,