FreeSWITCH

Merge pull request #1464 in FS/freeswitch from ~BODJI/freeswitch:FS-10299-mod_callcenter-database-blocking to master

* commit 'b185cc6e2471bd83e560f9c75a5828537848418e':
  FS-10299: [mod_callcenter] Add an option to disable global database lock on mod_callcenter