GTK3 version ported by Sean Wilson

1.1

- Better looking column headers
- Matching tooltip
- Improved slider
- Better looking toolbar separator
- Improved insensitive widgets

1.2

- Improved fallback mode to looks like GNOME 2.
- Button improvements that match the GTK2 theme better.
- Toolbar shouldn't be buttonised but only on hover

1.3

- Tooltip colour matches the Sonar GTK2 theme.
- Padding improvements to the buttons.
- various menu improvements.
- Added gradient to menu prelight.
- Don't buttonise search in Nautlius.
- fixed black toolbar.

