MixMonitor: Update XML documentation and CLI "mixmonitor {start|stop|list}" help.


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@393493 f38db490-d61c-443f-a65b-d21fe96a405b
MixMonitor: Don't use ast_strdupa() in a loop.


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@393494 f38db490-d61c-443f-a65b-d21fe96a405b
MixMonitor: Make start_mixmonitor_callback() options parameter NULL tolerant.

* Removed some unnecessary code in start_mixmonitor_callback().


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@393496 f38db490-d61c-443f-a65b-d21fe96a405b
MixMonitor: Minor code cleanup.


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@393500 f38db490-d61c-443f-a65b-d21fe96a405b
Add a SystemName field to all AMI events.

This only gets sent out if configured in asterisk.conf

(closes issue ASTERISK-21494)


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@393508 f38db490-d61c-443f-a65b-d21fe96a405b