Change SMA buffer APPEND_SMA_VAL macro so now the variance
of tone's frequency estimation is correctly calculated.
Change frequency advertised in log on beep detection from
most recently computed value to average of all values used
in DESA computation.

Merge pull request #753 in FS/freeswitch from ~ZSOMKOVACS/freeswitch:feature/FS-8870-log-call-quality-statistics to master

* commit '73c30999':
  FS-8870: add human-readable call quality statistics logs on call hangup

FS-8946: [mod_xml_cdr] fix segfault on call after loading with no config file or event bind failure causing module load failure

Merge pull request #750 in FS/freeswitch from ~ASIP42/freeswitch:bugfix/FS-8943-misspelling-in-two-comments to master

* commit 'ca39418f':
  FS-8943 Fixed misspellings in two comments

Merge pull request #742 in FS/freeswitch from ~PIOTRGREGOR/freeswitch:bugfix/FS-8853-enable-change-of-resolution-and-size-2 to master

* commit 'da7be641':
  FS-8853 enable change of resolution of fast arc cos table

Merge pull request #712 in FS/freeswitch from ~PIOTRGREGOR/freeswitch:bugfix/FS-8810-avmd-cosinus-table-creation-fails to master

* commit '1c39305f':
  FS-8810 fix crash on FS startup

Merge pull request #180 in FS/freeswitch from ~CXREG/freeswitch-memcache-file:file_interface_for_mod_memcache to master

* commit 'a2cecbcc':
  FS-7286 add file_interface support to mod_memcache

* commit '73684796':
  FS-8936 - Added swig typemap for "const char **" for fix invocation problems, reswig

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

This allows you to play files directly from memcached.
Currently only 8000hz 16 bit raw audio is supported.

Usage: playback(memcache://key)

The float-int-float fast arc cosine
mapping is now properly constructed (reused).

It is possible now to apply lower resolution to mapping
of float-integer-float and decrease size of mapped file.

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