MFH: r427950 r427951

Update to 0.3.

Switch from perl threads to Parallel::ForkManager. With perl 5.24, threads
used in distilator produce a many random warnings hinting at the fact that the
modules used to check the links are not (and never were) thread safe.

Remove WWW. There is no public website available.

Adjust description as perl threads are no longer used.

Approved by: ports-secteam (junovitch)