Fixed the issue with my previous commit for FELIX-4677
See also https://issues.apache.org/jira/browse/FELIX-4677

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1641784 13f79535-47bb-0310-9956-ffa450edef68
Applied the patch provided by Stefan Seifert for FELIX-4711
Web Console: False AJAX error displayed on deleting or unbinding config
https://issues.apache.org/jira/browse/FELIX-4711

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1641786 13f79535-47bb-0310-9956-ffa450edef68