Cortado/todo

• Make the Ogg/Vorbis only build work again (requires removing the static references to Theora/Kate in Durationscanner)
• Make 4:2:2 and 4:4:4 work.
• Chaining support. (At least 'play through' on an icecast stream)
• Vorbis low-pass mode to reduce aliasing when the pluging is producing µlaw output for a 1.1 JVM.
• New Vorbis implementation? Must benchmark and test with old JVMs.
• Dirac support?
• Improved duration scanning, seeking, and support for the index when its finalized.
• Make the ant build scripts produce proguarded binaries.