libcrypto shared major when we moved from OpenSSL 0.9.5 to 0.9.6.
Add note to libcrypto shlib_version file to remind people to also
update libdes shlib_version.
MIT shlib major was larger, bump the Heimdal shlib major to MIT major + 1,
so that exising installed programs using MIT libraries will continue to
function after the transition to Hiemdal.
