New with version 0.1:

* mscan now compiles and builds cleanly on 32 bit systems (at least
  it built fine for me on a Red Hat 3.0.3 x86 machine)
* man page has been fully updated
* halftone scanning works now
* new options to specify brightness, contrast, grainsize, and scan speed
  in a scanner independent (and more logical) manner
* various bug-fixes and cleanups
