Add new hard_mute control to allow apps to request low level mute e.g. from the rtp stack level.  Its used in mod_conference to avoid reading audio while muted and possibly reduce some transcoding load

FS-5816 #resolve #comment Record-Completion-Cause added to session recording RECORD_STOP event and record_completion_cause channel variable added.

FS-6921 #resolve #comment rayo APP now accepts optional comma separated list of JIDs or user names to steer incoming calls to specific rayo clients

FS-6940 #resolve #comment %FEATURE use the variable digits_dialed_filter to set regular expressions with () captures and anything matched will be replaced with X's in the CDR

FS-6927 #resolve #comment This display option ping times in the gateway status on sofia status gateways or individual gateway status output

* commit 'f5f6d157':
  add command 'action' with types 'reboot', 'reset', 'dialeddel', 'misseddel', 'receiveddel'
  Fix url encoding for snom remote commands (required to make # key work)

* commit 'a0d6b642':
  Fix ManagedEsl.2012.csproj: There is no file 'ESLconnection.2010.cs'.

FS-6849 #resolve #comment scripts need to have 'from freeswitch import *' at the top.  I added it explicitly to compensate.

Merge pull request #64 in FS/freeswitch from ~MBRANCA/freeswitch:bugfix/FS-6400-improve-sip-ping-generation-by-distributing to master

* commit 'beb1d179':
  FS-6400 Improve sip ping generation by distributing them across an interval

FS-6910 #resolve Multiple entry with the same first, last name or extension in the directory would only return 1 entry.  Fix issue where group by would produce multiple row of count(*) result.  Using distinct instead wouldn't solve the issue in SQLITE because of a bug, so solution is to use a subselect.

VERTO: expose audio mandatory constraints to demo and disable a few that seem to mess with audio quality

fix leak of nua handle due to reference counting that must be between 3 to 7 years old.  Effects all calls with auth/challenge on INVITE

have resume media on hold not send invite back out at the holder but rather enable media in the 200ok