FS-8933 #resolve Basic FreeSWITCH from source installer that works on Raspbian and Debian. Also installs VertoCommunicator and LetsEncrypt SSL Certs. LetsEncrypt requires the machine to have a public IP and DNS for the FDQN functioning properly in public DNS

Merge pull request #745 in FS/freeswitch from ~MICHAELGG/freeswitch:fs-8932-mod_managed_embedded_loading to master

* commit 'c96d0098':
  FS-8932 - Add in process loading via LoadEmbeddedPlugins

FS-8933 WIP initial commit of bash/dialog based installer for debian and raspbian \ debian support working, raspbian needs some work

Merge pull request #713 in FS/freeswitch from ~PIOTRGREGOR/freeswitch:bugfix/FS-8854-initialize-circular-buffer to master

* commit '3af3e54a':
  FS-8854 initialize circular buffer

Merge pull request #711 in FS/freeswitch from ~PIOTRGREGOR/freeswitch:bugfix/FS-8852-avmd-change-stop-condition-in-loop to master

* commit '1e8d3151':
  FS-8852 change stop condition in for loop

FS-8898 log setVariable at debug, so you can tell what variables are being set with ease from scripts

Merge pull request #733 in FS/freeswitch from ~TCSEKE/freeswitch:bugfix/FS-8866-mod_erlang_event-memleak to master

* commit '0914a501':
  Fix memory leaks

Merge pull request #737 in FS/freeswitch from ~CARLOSP/freeswitch:bugfix/FS-8910-sdes-not-properly-negotiated-when to master

* commit '8fa947aa':
  FS-8910: Properly negotiate SDES when receiving SDP with a=crypto:0

Merge pull request #735 in FS/freeswitch from ~DCOLOMBO/freeswitch:bugfix/FS-8911-fix-typo-in-conference_member to master

* commit '3e9e2398':
  FS-8911: fix typo in conference_member

When receiving an SDP with a=crypto:0 with the wanted crypto suite, we should
maintain that crypto tag in the local SDP in order for SDES setup to succeed.