pkg/46340: lang/openjdk7: DragonFlyBSD port

[Chris Turner]

FYI I've finally gotten around to submitting a bug r.e. this
port / emailing maintainers / tech-pkg@, etc.

So.. hopefully the next mail will advise that it has
been committed, and everyone can then begin to stare
at NoClassDefFound stack traces as they try and configure
all of their fave java goodness (hmm) to run on their
fave OS.

That being said, early adapters are still welcome to review
previous users@ posts on how to get this running at present
before it has been committed.

and thanks again to FTigeot for blazing the trail on this

Cheers,

- Chris