Separate queue_log arguments into separate fields, and allow the text file to be used, even when realtime is used.

(closes issue #17082)
 Reported by: coolmig
 Patches: 
       20100720__issue17082.diff.txt uploaded by tilghman (license 14)
 Tested by: coolmig


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@278307 65c4cc65-6c06-0410-ace0-fbb531ad65f3