Require AStyle v2.04 due to issues with the latest version.
CompositionObject: Set color palette to be transparent by default.

This fixes some PGS subtitles having opaque background instead of
transparent.
Enable "Properties" dialog for DVD and DVB playback modes.

- Support MediaInfo analyse for DVD

Fixes #907, #1091
Keep history of recently opened DVD directories.

Fixes #2438
Always show icon in the status bar during playback.