Added various tag photos.

migrations/20190325001339_releases.js

@@ -102,7 +102,8 @@ exports.up = knex => Promise.resolve()
 
 		table.integer('entity_id')
 			.references('id')
-			.inTable('entities');
+			.inTable('entities')
+			.onDelete('cascade');
 
 		table.text('comment');
 		table.text('group');