* Dial: handle incoming REFER on either leg by calling referHook, if configured
* lint
* modify payload of referHook
* support target.trunk on rest createCall api
* bugfix: gather partial result hook was not working
* lint
* handling of incoming REFER
* initial WIP to remove freeswitch from media path when not recording or transcribing dial calls
* implement release-media and anchor-media operations
* mute/unmute now handled by rtpengine
* Dial: dtmf detection now based on SIP INFO events from sbcs and rtpengine
* add reason to gather action, bugfixes for transcribe and say