Bring the wiki up to date with 4.0.0
The pages had drifted a long way from the library. Usage documented version
2.4.2, attrs.setFormat() and the jave-native-* artifact names, none of which
exist any more, and every example on the Examples page used setFormat, so
none of them compiled.
Usage: current install instructions including the bill of materials, the
platform package table with osx64 marked deprecated and the 32 bit x86
packages noted as removed, setOutputFormat, the listener including done(),
error handling and getInfo(long).
Examples: recipes for mp3, wav, amr, volume, flv, H.264, VP9, trimming,
rotation metadata, joining, stills, filters, progress and aborting.
Encoding-Attributes: rewritten from the source. It listed six setters under
the wrong package names and missed crf, preset, tune, profile, pixel format,
faststart, quality, vsync and filters entirely.
Custom-ffmpeg-arguments: new page for reaching options the typed API does
not model, driving ffmpeg through ProcessWrapper, and supplying your own
binary with a ProcessLocator.
Every java snippet across these pages was compiled against jave-core to make
sure the API calls are real.