(Only the first 10 of 105 ports in this commit are shown above. )
Deprecate md5 in favour of sha256 checksums. md5 checksums will no longer
be generated or checked, and will be silently ignored for now. Also,
generalize the MD5_FILE macro to DISTINFO_FILO.
Submitted by: rene
Approved by: portmgr
Tested on: pointyhat i386 7-exp