envelope: Print out a envelopes.

Usage: envelope <options>

Options:
	-f <from>	1 line squeezed from
	-t <to>		1 line squeezed to
	-x		Doing X windows
	-m <mode>	mode (0 .. 1)
	-s		small envelope (mode=1)
	
	-d		debug
	-q		Non-interactive
	-n <n>		Number of envelopes
	-i <file>	Input file for To.


Notes:
	To and from are ":" separated for each line.

	Renata B. Hesse:U.S. Department of Justice:601 D Street NW:Suite 1200:Washington, DC 20530-0001

	When using -i input mode it can either be squeezed format
	with :...:...: or a single multiline address. 

	For small envelope, it is a bit tricky in the HP 500C:

              Wheel  Wheel  Wheel
		#      #      #      
		#      #      #      
          Tab ==               == Tab        
              |                 |         

                |-----small-----|
             |--------large------|

	The left edge of the small env. just touches the left wheel.