FreeSWITCH-FS-6836

Merge pull request #392 in FS/freeswitch from ~VIPKILLA/freeswitch:master to master

* commit 'e2cf1f5270b22c1d6e36fcdc200cd6aa76c7511e':
  FS-7954: [mod_nibblebill] use switch_core_session_execute_exten instead of switch_ivr_session_transfer to perform inline dialplan action