Ignoringe the Finder's cookie-crumb files.
Added a 'minimal' example file.
Deprecated avbin_get_audio_buffer_size() since it is both entirely useless (it has always returned the constant 192000) and has been removed upstream.
Updated the OS X section.
Bumped to alpha5 in preparation for another prerelease.
Added a comment to the code noting that avbin_get_ffmpeg_revision() is deprecated.
Fixed our AVFrame handling to conform with new upstream requirements.  This fixes the crashing that I was experiencing when trying to use any upstream Libav version after upstream commit 1bc64c2814d409d3cc129c27c493ee915bebdc4a.
Added a script I found useful to track down the AVFrame-crashing problem with 'git bisect'
Updated Libav with upstream master, now that I figured the crashing AVFrame issue.