* PROJECTS: Added entry for the Fujitsu M3091DCd. Updated my email
address.
* TODO: Added entry for the Fujitsu M3091DCd and a combined Fujitsu
backend. Clarified that "printf" also shouldn't be used.
* backend/dll.desc: Added my email as contact address.
* backend/m3091.desc: New file for the Fujitsu M3091DCd.
* doc/sane-mustek.man: Updated URL.