PCI address space is completely seperate, so we don't have to claim any
resources to avoid clashes with main memory and firmware. Makes accelerated
graphics work on the Tadpole SPARCLE.
ok matthieu@, oga@
- privilege separation
- some snprintf/strlc{at,py} conversions
- support for more architectures
- signal handler fixes
- default mouse wheel support in config tools
- sunmouse protocol