Allow overriding of PORTSDIR from the command line.
Bugfix: Use the set flags for cleaning.
Unify spacing: use tabs instead of four whitespaces.
Bump version to 1.01
Convert MAILHOST for checking to lowercase
Canonicalize @FreeBSD.org
Merge pull request #13 from lwhsu/email-case-insensitive

Check email case insensitively when getpr
FreeBSD has no /sbin/md5sum, but /sbin/md5.
Put ARCHIVE_DIR in "" in case it's empty.