[#923] Merge remote-tracking branch 'remotes/upstream/develop' into twitter_oauth

# Conflicts:
#	docs/config.md
#	test/support/factory.ex

priv/repo/migrations/20190328053912_create_scheduled_activities.exs

@@ -0,0 +1,16 @@
+defmodule Pleroma.Repo.Migrations.CreateScheduledActivities do
+  use Ecto.Migration
+
+  def change do
+    create table(:scheduled_activities) do
+      add(:user_id, references(:users, type: :uuid, on_delete: :delete_all))
+      add(:scheduled_at, :naive_datetime, null: false)
+      add(:params, :map, null: false)
+
+      timestamps()
+    end
+
+    create(index(:scheduled_activities, [:scheduled_at]))
+    create(index(:scheduled_activities, [:user_id]))
+  end
+end