Added SITE_MODEL params to parms registry
Added SITE_MODEL params to parms registry


Former-commit-id: 1d80061e6ddbccc53cb01ff76b595fbe9c5d65e4 [formerly 8339740a94dfe2944c0deca2f9c12b3113b103d0]
Former-commit-id: c27241268729bada5e6b81d9d287f3f8b2e89f14
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine