Merge pull request #1547 in FS/freeswitch from ~THEHUNMONKGROUP/freeswitch:bugfix/FS-11283-ios-doesn-t-support-beforeunload to master

* commit '954b2564':
  FS-11283: iOS doesn't support beforeunload, use recommended pagehide for that platform

Merge pull request #884 in FS/freeswitch from ~THEHUNMONKGROUP/freeswitch:bugfix/FS-9258-recursive-calls-to-speedtest to master

* commit 'c037fc8c':
  FS-9258: Recursive calls to $.verto.rpcClient.speedTest() don't work

Merge pull request #1541 in FS/freeswitch from ~THEHUNMONKGROUP/freeswitch:bugfix/FS-11276-regression-dedicated-video-layers to master

* commit 'c83f7871':
  FS-11276: dedicated video layers can no longer become audio floor holder

SWITCH_DECLARE(switch_status_t) switch_dial_handle_create(switch_dial_handle_t **handle);
SWITCH_DECLARE(void) switch_dial_handle_destroy(switch_dial_handle_t **handle);
SWITCH_DECLARE(void) switch_dial_handle_add_leg_list(switch_dial_handle_t *handle, switch_dial_leg_list_t **leg_listP);
SWITCH_DECLARE(void) switch_dial_leg_list_add_leg(switch_dial_leg_list_t *parent, const char *dial_string, switch_dial_leg_t **legP);
SWITCH_DECLARE(void) switch_dial_handle_add_global_var(switch_dial_handle_t *handle, const char *var, const char *val);
SWITCH_DECLARE(void) switch_dial_handle_add_global_var_printf(switch_dial_handle_t *handle, const char *var, const char *fmt, ...);
SWITCH_DECLARE(switch_status_t) switch_dial_handle_add_leg_var(switch_dial_leg_t *leg, const char *var, const char *val);
SWITCH_DECLARE(switch_status_t) switch_dial_handle_add_leg_var_printf(switch_dial_leg_t *leg, const char *var, const char *fmt, ...);
SWITCH_DECLARE(int) switch_dial_handle_get_peers(switch_dial_handle_t *handle, int idx, char **array, int max);
SWITCH_DECLARE(int) switch_dial_handle_get_vars(switch_dial_handle_t *handle, int idx, switch_event_t **array, int max);
SWITCH_DECLARE(switch_event_t *) switch_dial_handle_get_global_vars(switch_dial_handle_t *handle);
SWITCH_DECLARE(switch_event_t *) switch_dial_leg_get_vars(switch_dial_leg_t *leg);
SWITCH_DECLARE(int) switch_dial_handle_get_total(switch_dial_handle_t *handle);
SWITCH_DECLARE(void) switch_ivr_orig_and_bridge(switch_core_session_t *session, const char *data, switch_dial_handle_t *dh);

add switch_dial_handle_t *dh to end of args for switch_ivr_originate

FS-11340: [freeswitch-core] Add some more code to vad obj to enable debuging and manage states better #resolve

For outgoing calls send AES crypto in offer using corrected names
for keys of length 192 and 256, i.e. names containing _192_CM_
and _256_CM_ instead of _CM_192_ and CM_256_. For incoming calls
accept both naming conventions, decaying to same entry in SUITES.

+ fix after SRTP failed for 256 keys:

Tests showed loop removing '=' from keys in switch_core_media_build_crypto

 1190     if (!switch_channel_var_true(channel, "rtp_pad_srtp_keys")) {
 1191         p = strrchr((char *) b64_key, '=');
 1192
 1193         while (p && *p && *p == '=') {
 1194             *p-- = '\0';
 1195         }
 1196     }

shouldn't be executed for AES_CM_256_HMAC_SHA1_32 and AES_CM_256_HMAC_SHA1_80
keys and it is meaningless for AES_CM_128_HMAC_SHA1_32 AES_CM_128_HMAC_SHA1_80
keys. Tested calling from Bria.

Introduced switch_channel_var_false and changed this to:
	if (switch_channel_var_false(channel, "rtp_pad_srtp_keys"))
to enter the loop if var is set to false (and not if it is _not_ set).

FS-11304 - [Configuration]: update vanilla config files for correcting conference_utils_auto_outcall_flags

update mod_mp4v2 fix record video and lipsync
refactor to use a dedicated video write thread
read frame_size from encoder to support mp3 and aac codec
fix audio only mode
control bandwidth and fps

Merge pull request #1570 in FS/freeswitch from ~ANDYWOLK/freeswitch:FS-11328-update-lua-version-from-5.3.4-to to master

* commit '01329823':
  FS-11328: [mod_lua] Update Lua version from 5.3.4 to 5.3.5 for the Windows build.

* commit '720128b6':
  FS-11310 #resolve add more params for conference record stop event
  FS-11310 #resolve add optional switch_core_file_pre_close() to stop writing to file and possible to get file size related params

* commit '01bac4cc':
  FS-11316 [mod_rayo] Add FS API support
  FS-11316 [mod_rayo] Add dialplan app execution component

FS-11310 #resolve add optional switch_core_file_pre_close() to stop writing to file and possible to get file size related params

Merge pull request #1560 in FS/freeswitch from ~ANDYWOLK/freeswitch:FS-11303-migrate-visual-c-components-redistribution to master

* commit '144bbec7':
  FS-11303: [Build-System] Migrate Visual C++ components redistribution using merge modules from v140 to v141 (VS2017), minor cleanup.

FS-11303: [Build-System] Migrate Visual C++ components redistribution using merge modules from v140 to v141 (VS2017), minor cleanup.

Merge pull request #1540 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-11271-add-mod_cdr_mongodb-to-the-windows to master

* commit '87f004bc':
  FS-11271: [Build-System] Add mod_cdr_mongodb to the Windows build.

Merge pull request #1559 in FS/freeswitch from ~ANDYWOLK/freeswitch:bugfix/FS-11298-fix-win32-build-under-visual-studio to master

* commit '13421eea':
  FS-11298: [Build-System] Fix Win32 build under Visual Studio.

Merge pull request #1558 in FS/freeswitch from ~ANDYWOLK/freeswitch:feature/FS-11297-add-mod_cidlookup-to-the-windows to master

* commit '21b135cc':
  FS-11297: [Build-System] Add mod_cidlookup to the Windows build.

Merge pull request #1557 in FS/freeswitch from ~ANDYWOLK/freeswitch:bugfix/FS-11295-mod_av-fix-wrong-path-to-yasm.exe to master

* commit '6712f399':
  FS-11295: [mod_av] Fix wrong path to yasm.exe

Merge pull request #1555 in FS/freeswitch from ~ANDYWOLK/freeswitch:bugfix/FS-11288-refactor-wix-project-to-not-miss to master

* commit 'e08406d1':
  FS-11288: [Build-System] Refactor WIX project to not miss modules in msi on slow machines. Move Windows build logic from legacy util.vbs to modern props. Fix sound packages improper extraction. Fix multiprocessor build under msbuild.

Merge pull request #1556 in FS/freeswitch from ~ANDYWOLK/freeswitch:bugfix/FS-11294-fix-mod_av-build-on-windows to master

* commit '5f61553d':
  FS-11294: [mod_av] Fix mod_av build on Windows.

FS-11288: [Build-System] Refactor WIX project to not miss modules in msi on slow machines. Move Windows build logic from legacy util.vbs to modern props. Fix sound packages improper extraction. Fix multiprocessor build under msbuild.

* commit '6e76f630':
  FS-10450 #resolve fix zero and negative file duration