add ability to specify member "all" on conference api commands taking a member (thanks knhor).

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3142 d0543943-73ff-0310-b7d9-9358b9ac24b2

AUTHORS

@@ -28,6 +28,7 @@ that much better:
  Justin Unger - <justinunger at gmail dot com> Lots of help with patches and SIP testing. Thanks! 
  Paul D. Tinsley - Various patches and support. <pdt at jackhammer.org>
  Ken Rice of Asteria Solutions Group, INC <ken AT asteriasgi.com> - xmlcdr, sofia improvements, load testing.
+ Neal Horman <neal at wanlink dot com> - conference improvements and other tweaks.
 
 A big THANK YOU goes to: