Java atrac3+ decoder: draft implementation for GHA Phase shifting (not implemented in ffmpeg).

git-svn-id: http://jpcsp.googlecode.com/svn/trunk@3633 4ab978e6-3352-0410-996c-0b42db0051c8
Improved sceAtracResetPlayPosition() and handling of mono audio.

git-svn-id: http://jpcsp.googlecode.com/svn/trunk@3634 4ab978e6-3352-0410-996c-0b42db0051c8
Migrated the audio decoding for videos (sceMpeg and scePsmfPlayer) to use the Java decoders instead of Xuggle.
Removed 2 audio settings as they have been made obsolete by the Java decoders: "Extract media files to TMP folder" and "Enable Atrac3+ decoding".

git-svn-id: http://jpcsp.googlecode.com/svn/trunk@3635 4ab978e6-3352-0410-996c-0b42db0051c8
Implemented the playback of music (PSP_GAME/SND0.AT3) in the UMD browser. Atrac3+ is now also supported thanks to the Java decoder.

git-svn-id: http://jpcsp.googlecode.com/svn/trunk@3636 4ab978e6-3352-0410-996c-0b42db0051c8
Updated the README

git-svn-id: http://jpcsp.googlecode.com/svn/trunk@3637 4ab978e6-3352-0410-996c-0b42db0051c8