[jdgtipus] base 57

23456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz

omissions: capital i and lowercase L look similar in sans serif fonts: Il.  lowercase L and number 1 look similar in serif fonts: l1.  number 0 and capital o look similar in many fonts: 0O.

similar to Bitcoin's base 58: previously (1), (2)