Fix use of OBJ_KEY in Queue application.

To use the new OBJ_KEY flag, the container hash and compare callback
functions must be updated to support OBJ_KEY.  Otherwise, bad things
happen.

(issue ASTERISK-14769)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@342112 65c4cc65-6c06-0410-ace0-fbb531ad65f3