Merge pull request #181 from gentryx/master

Resolved two minor issues in the Silo ebuild
sci-physics/lammps: Upstream now releases a stable channel

I added Feb 1 2014 in the stable slot to indicate that upstream considers this
version more tested and stable than their normal frequent releases.

Package-Manager: portage-2.2.7
Merge branch 'master' of github.com:gentoo-science/sci
added use-flags for silo and netcdf to VisIt
Merge /usr/local/portage/andis_overlay