libmikmod release 3.3.13

set release dates for libmikmod-3.3.12 and mikmod-3.2.9

set release dates for libmikmod-3.3.12 and mikmod-3.2.9

tag libmikmod-3.3.11

update config.guess and config.sub

update config.guess and config.sub

set release date for libmikmod-3.3.10

set release date for libmikmod-3.3.9

set new release dates.

set new release dates.