v0.3.0

I upgraded all dependencies to get the latest bug fixes, and made the humble-video-all POM now only pull in the native code on the platform you're running on.

• Ffmpeg: Version n2.8.15 (git://source.ffmpeg.org/ffmpeg.git)
• x264: stable as of Nov 17 (git://git.videolan.org/x264).
• Other libraries also updated to latest, including Openssl to 1.1 (from 1.0).

No other real new features -- just four years of stability and bug fixes from libraries used.