Merge pull request #692 in FS/freeswitch from ~DCOLOMBO/freeswitch:bugfix/FS-8792-video-quality-combo-box-doesn-t-apply to master

* commit 'c6921959':
  FS-8792: apply video resolution on combobox video quality changes

FS-8867: do hidden visibility on vpx as we don't want symbols leaking out of libfreeswitch, and we get relocation error on a vpx symbol anyways

FS-8867: build using in tree libvpx, vpx no longer optional and does not use system libvpx due to issues with having to update it frequently conflicting with system libraries, now we link to the static in tree version instead.  Also, mod_vpx is now a core module instead of a loadable module, so mod_vpx.so will no longer be built

FS-8867: build using in tree libyuv to match required version and not impact system ones that are never sufficient version

add libvpx 89cc6825 (matching current chrome canary) from repo https://chromium.googlesource.com/webm/libvpx

FS-8856 - [mod_callcenter] Inserting member as a new one when restoring action fails because our agent_dispatch_thread removed the members just before we tried to update him.

* commit '94c11e41':
  FS-8806 Change group_confirm_cancel_timeout to apply only to the legs that answer the call.

Merge pull request #710 in FS/freeswitch from feature/FS-8688-implement-vp9-draft-uberti-payload to master

* commit '5b456b39':
  FS-8688 #resolve [Implement VP9 draft uberti payload 01 and libVPX 1.5]

FS-8838 [mod_rayo] Do a better job of detecting when output component completed because of hangup and preventing operations on output component when call has ended.

FS-8838 [mod_rayo] improve logging and error handling when executing API on output component.  Attempt to make output component stop a little more robust.

Merge pull request #708 in FS/freeswitch from bugfix/FS-8830-core-media-sdp-line-separator-needs to master

* commit '00ac46bd':
  FS-8830 SDP line separator fix for SDP generated by the core

Sofia when giving an SDP through SOA was parsing the SDP and rewriting
it. For endpoints that use the core SDP as is will have more accurate
SDP now.

Merge pull request #700 in FS/freeswitch from ~RORAMIREZ/freeswitch:feature/mod_callcenter-realtime-counter-answer-abandoned to master

* commit '1661fc6a':
  FS-8822 - [mod_callcenter] Realtime counter for  calls in a queue

FS-8818 #resolve refactor X-PRE include to not toss error if there are not files that match the include

* commit 'f2fcfe1a':
  FS-8668: allow channel variable prefix-a-leg to override global setting in mod_xml_cdr

FS-8816 #resolve [switch_hashtable_insert_destructor() returns 0/-1 but switch_core_hash_insert_destructor never checks this]

Merge pull request #701 in FS/freeswitch from ~TINKYWINKY/freeswitch:bugfix/FS-8809-avmd-compilation-fails-if-fastmath to master

* commit 'b8a8c885':
  FS-8809 fix MAP_POPULATE undeclared

Add AM_MOD_AVMD_CXXFLAGS compile flag to mod avmd
and set this flag to -std=gnu99 in configure.ac
in case compiler vendor is xgnu.

Merge pull request #702 in FS/freeswitch from ~ARTURZ/freeswitch:FS-8812-switch_channel_check_signal-in_thread_only to master

* commit 'e24c3939':
  FS-8812 Respect in_thread_only parameter in switch_channel_check_signal()