6UPLABEL: showuniquepairs - UPLABEL command

Parameters: banscramble
            multipair=<integer>= 1

To get a better overview over the number of unique pairs and their
occurrence in the the sequence the showuniquepairs command is used.
The multipair argument shows all unique pairs with an occurrence lower
than the supplied number. "Banscramble" automatically removes the 
amino acids ASP,ASN,GLU,GLN,PRO from the display.
Multipair also shows pairs that occur up to <integer> times. 
