Merge pull request #316 from magicbear/master

add $msec suppoprt for log_format
fixed drop/publisher
envivo fix; it does not finalize connect() arrays properly
first attempt to implement control redirect
improved Envivio fix: now key length can be unfinalized with object
added control redirect
improved hls boundary check
implemented ordered frames in mp4 vod
implemented play2
shared fill args func
fixed parsing addr in control module
implemented async control
returned hls discontinuity
Merge branch 'master' into control-redirect
fixed formatting error in stat module
fixed HLS stream restart
removed AAC header from HLS handler
fixed crash in hls
fixed log message
improved hls fragment boundary condition