FreeSWITCH

Merge pull request #759 in FS/freeswitch from FS-8406 to master

* commit '3d90d752fca16016d4a3556cb02bf9db837feffa':
  FS-8406 #resolve #comment improvement to drop video packets on slow rtmp link
  FS-8406 #comment add options to scale down cavas size, fps and bandwidth