Merge pull request #542 in FS/freeswitch from ~SSINYAGIN/freeswitch:bugfix/FS-7910-systemd-service-ignores-etc-default-freeswitch to master

* commit 'b2bcc8b2':
  FS-8194 FS-7910 FS-7937 systemd service improvements

freeswitch-systemd.freeswitch.service:
* starting the daemon as root and switchig to freeswitch user
* respecting the options in /etc/default/freeswitch
* RuntimeDirectory parameter is replaced with a tmpfiles.d entry
  because /run/freeswitch has to be owned by freeswitch user
* instructions how to start it as non-root

debian/freeswitch-systemd.freeswitch.tmpfile:
* this defines the PID directory with correct permissions

debian/bootstrap.sh, debian/rules:
* proper handling of freeswitch.service
* deleted debian/freeswitch-systemd.install because it caused an error
  in dh_install because it's run before dh_installinit
* renamed: freeswitch-sysvinit.freeswitch.default -> freeswitch-systemd.freeswitch.default
  because sysvinit support will eventually die out

debian/freeswitch.postinst:
* run "systemctl enable freeswitch" if systemctl is available

CAVEAT: only one option is supported in /etc/default/freeswitch because the
variable ${DAEMON_OPTS} is expanded as a single token. This will be fixed
as soon as freeswitch-sysvinit is removed from freeswitch-all.

* commit '2fce618f':
  FS-8234 #resolve

FS-8271 defaulting to automatically download the binary deps because without major changes to package building in cowbuilder(which is the primary supported method of building FS packages), you can't access the network to build the binary packages from the source package.

FS-8271 Now the default will build packages with the upstream FS package repos. This is a change in the default behavior of the debian packaging system with the justification that in 1.6 it is now required to use the FS public repo for deps because system dependancies have been removed from the FS codebase which use to be included.

FS-8321 #resolve [BEHAVIOR CHANGE Add variable media_mix_inbound_outbound_codecs to mix inbound and outbound codecs]

Merge pull request #547 in FS/freeswitch from ~GIGGSEY/freeswitch:bugfix/FS-8311-leave-message-verbose-data-for-forwarded to master

* commit 'c50d87a0':
  FS-8311 [mod_voicemail] Pass session to deliver_vm

Allows the leave-message event to add the verbose data

FS-8311 #resolve

* commit '62d4d47b':
  FS-8198: Fixed default CRLF sequence in t38 SDP

Merge pull request #544 in FS/freeswitch from ~STEFAN_YOHANSSON/freeswitch:bugfix/FS-8247-when-websocket-disconnections-go to master

* commit '6df703fc':
  FS-8247 [verto_communicator] Waiting for server reconnection.

Merge pull request #538 in FS/freeswitch from ~STEFAN_YOHANSSON/freeswitch:bugfix/FS-8290-automatically-mark-dedicated-encoder to master

* commit '9b82894f':
  FS-8290 #resolve [verto_communicator] automatically mark dedicated encoder if out/in bandwith isnt 'Server default'