Updated mediawiki/extensions
Project: mediawiki/extensions/WikiForum  1f06b78f9511c198acbcdacd46cd13b3b4dfd368

fix bug in 'savenewthread' action

code expect WFThread object to call show()
but addThread() uses WFThread::add which return string and call show() itself

Change-Id: Ief7354438d2cf53a8b7101d44161300058585465