Log Message:
Update to 0.4.2:

Diffuse 0.4.2 - 2010-04-13
- support for detached Git repositories
- better removal of unnecessary spacer lines
- added support for horizontal mouse scrolling
- renamed some resources to more user friendly names
- RCS support
- added Henri Menke's Spanish translation
- "#!" interpreter lines are now used to select proper highlighting rules
- syntax highlighting is now indicated by radio menu items