devel/ocaml-camlp5: Upgrade version 6.11 => 6.12, reset maintainer
This port broke at configuration after the latest upgrade of ocaml.
The listed maintainer timed out again, and he did not stage this port
(meaning that if it hadn't have been done for him, he would have been
removed as maintainer long ago). I'm resetting maintainership now.
Submitted by: h.skuhra (gmail)
Approved by: maintainer timeout (maintainer reset)