Bump version.
Add detection of Opus to Matroska IDs in codectype.cpp
Fix alignment of the Matroska IDs after adding A_OPUS/EXPERIMENTAL
Add H265/HEVC to the Matroska IDs in codectype.cpp

The V_MPEGH/ISO/HEVC designation is part of the draft for HEVC's
inclusion in Matroska.
Merge pull request #124 from qyot27/new_codectypes

Add Opus and (tentative) HEVC to codectypes
Fix compilation with things other than ffmpeg master. Closes #126.
Close the audio codec before closing the format context

Closes #127.
Document the lifetime of FFMS_Frame

There was an offhand mention that the frames are owned by the video
source in the sample code, but not in the obvious place to look for such
things.

Closes #130.