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()

Merge pull request #699 in FS/freeswitch from ~TINKYWINKY/freeswitch:bugfix/FS-8808-avmd-code-refactor to master

* commit '5216adef':
  refactor: fix comments
  refactor: fix comments
  refactor: fix comments

This commit merges changes from bugfix/refactor that was created
by myself to refactor [avmd] code. There was no Jira issue for this
change, so after Jira issue has been set up I have created this
branch to fix Jira case.

Applying code guidelines. No side effects.

Applying code guidelines. No side effects.

Applying code guidelines. No side effects.

Merge pull request #694 in FS/freeswitch from ~DCOLOMBO/freeswitch:bugfix/FS-8805-verto-communicator-doesn-t-work-with to master

* commit '70b14241':
  FS-8805: sanity check on array
  FS-8805: sanity check on array

Merge pull request #693 in FS/freeswitch from ~CORSMITH/freeswitch:bugfix/FS-8778-FreeBSD-bswap to master

* commit '30077789':
  FS-8778 #resolve FreeBSD: src/mod/endpoints/mod_verto/ws.h define __bswap_64

Merge pull request #697 in FS/freeswitch from ~CORSMITH/freeswitch:bugfix/FS-8779-freebsd-src-mod-formats-mod_shout-mod_shout.c to master

* commit '3cb04ced':
  FS-8779: [mod_shout] properly detect lame/lame.h

* Add correct mp3lame configure check since it does not use pkg-config
* Update mod_shout Makefile to log failure message if mp3lame not available
* Rewrite #include for lame.h to lame/lame.h in mod_shout.c

* commit 'bfe2ba45':
  refactor: fix comments

Simple, independent change with no side effects.

Merge pull request #695 in FS/freeswitch from bugfix/FS-8726-spurious-case-of-thread-stuck-and to master

* commit '49462bfe':
  FS-8726 #resolve [Spurious case of thread stuck and saturating CPU]

FS-8789: remove ability to swap to personal canvas while recording and prevent recording while personal canvas is on.

FS-6833 #resolve [Allow Freeswitch to initiate Late offer calls.] #comment Regression from addition of custom variables

Merge pull request #661 in FS/freeswitch from ~ANDEE/freeswitch:bugfix/FS-8424-commit-8f343939 to master

* commit '92ac448c':
  FS-8424 fix for default rounding values

Merge pull request #682 in FS/freeswitch from ~WAL-D/freeswitch:bugfix/FS-8775-mod_say_de.c-is-missing-short_date_time to master

* commit 'f6e1056c':
  FS_8775 Add function SST_SHORT_DATE_TIME to mod_say_de.c and some language tweaks