Using SiteCollection.from_points
Merge branch 'disagg-2' of github.com:gem/oq-engine into light-site-collection
Merge branch 'master' of github.com:gem/oq-engine into light-site-collection
Merge branch 'light-site-collection' of github.com:gem/oq-engine into light-site-collection
Reflected the change of API in SiteCollection.from_points
Reflected the change .sid -> .sids
Merged from master
Merge branch 'master' of github.com:gem/oq-engine into light-site-collection
Merge pull request #1396 from gem/light-site-collection

Make use of the light site collection introduced in hazardlib