[patch] userservice plugin null check on update

Hi,

The UserService plugin can be used to update a users password, name, or email. Unfortunately, you have to set all three of those values via the URI or else they are ‘nulled’ in the database I have submitted a patch to correct this feature of the plugin.

http://www.igniterealtime.org/issues/browse/JM-1463

daryl

For some reason, Jira lost the attachment on the ticket. Reattached

daryl