Create migration_requests table to track beta requests

db/main/migrate/20181130144914_create_migration_requests.rb

@@ -0,0 +1,10 @@
+class CreateMigrationRequests < ActiveRecord::Migration[4.2]
+  def change
+    create_table :migration_requests do |t|
+      t.string :owner_name, null: false
+      t.string :owner_type, null: false
+      t.date :accepted_at
+      t.timestamps
+    end
+  end
+end