FreeSWITCH

Merge pull request #479 in FS/freeswitch from ~DRAGOS_OANCEA/freeswitch-dragos:opus-init-improvements to master

* commit '27d7ebeb94c5ea23e612e0a7356919f19e74bdd5':
  FS-8296: mod_opus: Improve the way Opus is initialized when a call comes in .