ports/179572: Add option for science/py-h5py to use science/hdf5-18 instead of science/hdf5

[crees at FreeBSD.org]

Synopsis: Add option for science/py-h5py to use science/hdf5-18 instead of science/hdf5

State-Changed-From-To: open->feedback
State-Changed-By: crees
State-Changed-When: Sun Jun 16 18:54:53 UTC 2013
State-Changed-Why: 
Ask for maintainer approval.

http://www.freebsd.org/cgi/query-pr.cgi?pr=179572