ports/162576: lang/ocaml update to 3.12.1

[miwi at FreeBSD.org]

Synopsis: lang/ocaml update to 3.12.1

Responsible-Changed-From-To: freebsd-ports-bugs->miwi
Responsible-Changed-By: miwi
Responsible-Changed-When: Tue Nov 15 16:10:18 UTC 2011
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=162576