1. Added the following new printer support.
Deskjet 450, Deskjet 3320, Deskjet 3420, Deskjet 3425,
Deskjet 3810, Deskjet 3816, Deskjet 3822, Deskjet 6122,
Deskjet 6127, Photosmart 230, Photosmart 7550, PSC 2100,
PSC 2150, PSC 2200
2. Made a change to configure.in to check for uint32_t in stdint.h,
machine/types.h and inttypes.h.
3. Added 600 dpi Best and 1200 dpi Photo to DJ9xx.
4. Added a new paper size for printing covers on Deskjet 3425.
5. Fixed a DJ850 extra page and top margin problem.
6. Fixed a Deskjet 1120/1125 multiple page problem. These printers now
use the DJ9xx device class with limited support.
plus a pkgsrc patch which enables output buffering. This should
reduce system load.
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