Support an alternate configuration file for the 'logger reload' command.

(closes issue #17668)
 Reported by: tilghman
 Patches: 
       20100718__logger_reload_altconf__2.diff.txt uploaded by tilghman (license 14)
 
Review: (by lmadsen, russell within comments on issue tracker)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@300044 65c4cc65-6c06-0410-ace0-fbb531ad65f3