Author: Andrew Davis
message MDL-25267 made jabber processor detect if it hasnt been configured
http://git.moodle.org/gw?p=moodle.git;a=commit;h=861fa9120da34f481769dd6952700a2197413350
http://github.com/moodle/moodle/commit/861fa9120da34f481769dd6952700a2197413350
+ 2.0 en [notconfigured,message_jabber]