Mostly just tidy up, catching pages that I missed the first time round.
A small number of pages were given a bit more reformat. A bit beyond
the remit of this merge request but not too much has been changed.
at the end of the scan area and also missing parts of the scanned
image. Increased safety margin for backtracking. This fixes the "garbled image"
bug. Set default gamma value to 2. Manpage update. Status set to "basic".
package, based on Frank Zago's patches based on Adrian Perez Jorge's code. Fixed
compilation warnings. Fixed bug when no sane device was given. Code indented by
indent -gnu. Added man page.