(1) made note that no-gap scoring scheme is allowed (2) added score_xxx as methods (3) permitted extra carriage returns at end of the score matrix text blob
(1) made note that no-gap scoring scheme is allowed (2) added score_xxx as methods (3) permitted extra carriage returns at end of the score matrix text blob

uhjish/bx-python,uhjish/bx-python,uhjish/bx-python