FS-9906: [mod_conference] Member join/part in conference shows webcam briefly during slide transition #resolve

Merge pull request #1137 in FS/freeswitch from ~KIDPLUG/freeswitch-kp:bugfix/FS-9917-switch_rtp-loses-the-current-packet to master

* commit '879c04b3':
  FS-9917 [switch_rtp/core] Fix in do_flush to handle the current packet (if RFC2833) rather than discard it. only print flushed if we flushed something

FS-9917 [switch_rtp/core] Fix in do_flush to handle the current packet (if RFC2833) rather than discard it.
only print flushed if we flushed something

Merge pull request #1124 in FS/freeswitch from ~TCULJAGA/freeswitch_tc:bugfix/FS-9873-a1-hash_for_mod_verto to master

* commit '1f7a7e33':
  FS-9873 mod_verto a1-hash - squashed

FS-9206: [mod_sofia] proxy media with enable-3pcc=proxy does not properly pass audio after 3pcc re-invite #resolve

Merge pull request #1128 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-9896-mod_v8-implement-serving-configuration to master

* commit 'a3a8d7e6':
  FS-9896 [mod_v8] Implement Serving Configuration with JavaScript

* commit '7248a4f3':
  FS-9910 [mod_sofia]: Set SIP reason header for BYE events.

Merge pull request #1118 in FS/freeswitch from ~ANTONIO/freeswitch:bugfix/FS-9877-mod_loopback-no-audio to master

* commit '5dfc63c1':
  FS-9877 [mod_loopback] fix no audio

Merge pull request #1129 in FS/freeswitch from ~ANDYWOLK/freeswitch:bugfix/FS-9897-mod_v8-fix-visual-studio-2015-build to master

* commit '31fd8f36':
  FS-9897 [mod_v8] Fix Visual Studio 2015 build

* commit 'c1abfaf4':
  FS-9903 #resolve #comment fix server side TLS and add client TLS support

FS-9206: [mod_sofia] proxy media with enable-3pcc=proxy does not properly pass audio after 3pcc re-invite #resolve

[mod_callcenter] FS-9347: Do not log as error when the member is gone just before we assigned an agent, now logging as DEBUG

[mod_callcenter] FS-9689 Fixed issue when agent rejects the call while hearing cc_outbound_announce making member (caller) waiting on queue forever

[mod_callcenter] FS-9723: Fixing cc_warning_tone, using switch_ivr_play_file instead of queue private event

Merge pull request #1126 in FS/freeswitch from ~STEFAN_YOHANSSON/freeswitch:feature/change-wss-server to master

* commit '10646ab9':
  [verto-communicator] - Added change server feature

Merge pull request #1125 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-7933-v8-allow-non-blocking-socket-access to master

* commit '3f3cd734':
  FS-7933 [mod_v8] Implement timeout property for Socket() class in javascript.

* commit '8c1ed38d':
  FS-9792: Set channel variable based on the sip phone Accept Language SIP message