VideoProperties: add getBitDepth
Merge pull request #18 from cchampet/videoProperties_add_getBitDepth

VideoProperties: add getBitDepth
AvInputVideo: fix missing frame when transcoding (flush decoder buffer)
AvInputAudio: flush decoder buffer at the end of the transcode process
Merge pull request #19 from valnoel/develop

Video / Audio: fix missing frames when processing with codec with latency
Version: update to 0.4.1
Release note:
 - Fix missing frame when transcoding
 - Add getBitDepth method to VideoProperties