Add get_default_domain to fs manager
Add hangup after bridge for transferred calls
Add support for simple addresses for outband transfer
Fix missing hangup on ring_transient
Add transfer_outband for voicemail
UC-1443: Outbound Call gadget

* Add outbound call to freeswitch_media_manager
* Add freeswitch outbound
UC-1443: Outbound call gadget

* Used freeswitch:bgapi instead of api for faster state change to js
UC-1443: Outbound call gadget

* Add timestamp to js info
* Change several terms
UC-1443: Outbound call gadget

* Add new state awaiting_destination
* Add new api call call_destination
UC-1437 Outbound call from voicemail

* Add outbound from voicemail in freeswitch outbound
* Change check of outbound call from status of agent to availability of voice channel
* Add handler of voicemail outbound in freeswitch voicemail
UC-1437 Outbound call from voicemail

* Add code to remove voice channel from agent when doing outbound call
* Add reply to make outbound call api