Yet another issue where the conversion of the application delimiter to comma caused an issue.

Application arguments within the feature map could possibly contain a comma,
which conflicts with the syntax of the features.conf configuration file.  This
patch allows the argument to be wrapped in parentheses or quoted, to allow the
application arguments to be interpreted as a single configuration parameter.

(closes issue #16646)
 Reported by: pinga-fogo
 Patches: 
       20100414__issue16646.diff.txt uploaded by tilghman (license 14)
 Tested by: tilghman
 
Review: https://reviewboard.asterisk.org/r/547/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@257262 65c4cc65-6c06-0410-ace0-fbb531ad65f3