Merge pull request #845 from somayjain/ssf

SSF: Fix login issue on default/user/login page
org_AssignMethod to add Orgs to an Org Group
Deploy/inbox revisited: bulk delete messages, better truncation logic
Revert default template self_registration=False
IS_JSONS3 validator
GIS: Start work on allowing Features within a Layer to be styled
individually
Job title field and combined onaccept for deploy_assignment
Minor fix/tweak for EdenTest
SSF: Deployment page