Handle None protocol in security group rule table

Default Quantum security groups come in with a protocol of None via
nova. Horizon chokes when it tries to uppercase what it expects to be
a unicode string.

Replace None with 'Any' when displaying the value.

Fixes bug 1156922.

Change-Id: I94a534e829ecdbe75f785eb8fc750260aacd6dfc

openstack_dashboard/dashboards/project/access_and_security/security_groups/tables.py

@@ -101,10 +101,16 @@ def get_source(rule):
         return None
 
 
+def filter_protocol(protocol):
+    if protocol is None:
+        return _('Any')
+    return unicode.upper(protocol)
+
+
 class RulesTable(tables.DataTable):
     protocol = tables.Column("ip_protocol",
                              verbose_name=_("IP Protocol"),
-                             filters=(unicode.upper,))
+                             filters=(filter_protocol,))
     from_port = tables.Column("from_port", verbose_name=_("From Port"))
     to_port = tables.Column("to_port", verbose_name=_("To Port"))
     source = tables.Column(get_source, verbose_name=_("Source"))