Several variables in the script control which files are converted and the
source and destination formats.
Patch-by: Trey Blancher <support@digium.com>
(closes AST-560)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@326368 65c4cc65-6c06-0410-ace0-fbb531ad65f3