FreeSWITCH

Merge pull request #1375 in FS/freeswitch from ~LAZEDO/freeswitch:feature/FS-10623 to master

* commit 'ce198895f1c0f401076370b2f4ec9a9f62d439e9':
  FS-10623 [mod_conference] add conference to xml/json list
  FS-10623 [mod_conference] emit conference vars in events and allow setting them in profiles