Issue #103 Change-Id: Iec7db3d155c81cf989f1078ed32692f8e037aa65
For mp4 outputs, a metadata box with version information is added to moov box. For mpd outputs, a text comment with version information is added in the beginning of mpd file. Issue #60 Change-Id: I783ba370781c0a8f77c910ff1172bad2e7edff75
Change-Id: I7e3b24e92b2a16de857e0424c85232cc31444182