Merging in latest changes from master

config/settings/base.py

config/settings/container/base.py

config/settings/container/dev.py

config/settings/container/playground.py

config/settings/container/production.py

config/settings/container/test.py

docs/user_docs/source/models.rst

docs/user_docs/source/rest.rst

gracedb/alerts/xmpp.py

gracedb/events/migrations/0045_add_early_warning_search.py

...db/events/migrations/0046_add_integral_agile_pipelines.py

...s/migrations/0047_specify_integralagile_pipeline_types.py

gracedb/events/translator.py

gracedb/events/view_logic.py

...rations/guardian/0009_populate_integralagile_uploaders.py

...n/0010_authorize_raven_users_to_populate_new_pipelines.py