New version of the Sega Dreamcast emulator for Linux and OS X.

Changelog:

What's new

- Fully native OS X support
- Renderer rewrite (fixes perspective correction among other problems)
- ALSA and PulseAudio sound drivers
- Save states now work on x86-64
- New translations: Spanish and Italian
- Lots of miscellaneous bug-fixes and improvements

Last week’s changes

- OS X: Shiny new preferences dialog
- OS X: Fix internationalisation support
- OS X: Finish off application bundle (Info.plist, icon)
- OS X: Handle mode-unspecified CD-Rom disc reads
- Linux: Show CD-Rom drive names in gdrom menu
- Linux: Fix mounting empty CD-Rom drives
- Change audio initialization to try all available drivers