Merge branch 'develop' into rename/pleroma_activity_consistency

lib/pleroma/activity.ex

lib/pleroma/reverse_proxy.ex

lib/pleroma/uploaders/uploader.ex

lib/pleroma/user.ex

lib/pleroma/web/activity_pub/activity_pub.ex

lib/pleroma/web/activity_pub/transmogrifier.ex

lib/pleroma/web/activity_pub/utils.ex

lib/pleroma/web/common_api/common_api.ex

lib/pleroma/web/mastodon_api/views/status_view.ex

lib/pleroma/web/router.ex

lib/pleroma/web/uploader_controller.ex

.../migrations/20190122153157_update_activity_visibility.exs

priv/static/schemas/litepub-0.1.jsonld

test/integration/mastodon_websocket_test.exs

test/web/activity_pub/transmogrifier_test.exs

test/web/activity_pub/utils_test.exs

test/web/mastodon_api/mastodon_api_controller_test.exs