Fix missing authtoken scope

Signed-off-by: Julius Härtl <jus@bitgrid.net>

core/Migrations/Version13000Date20170718121200.php

@@ -549,6 +549,11 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 			$table->setPrimaryKey(['id']);
 			$table->addUniqueIndex(['token'], 'authtoken_token_index');
 			$table->addIndex(['last_activity'], 'authtoken_last_activity_idx');
+		} else {
+			$table = $schema->getTable('authtoken');
+			$table->addColumn('scope', 'text', [
+				'notnull' => false,
+			]);
 		}
 
 		if (!$schema->hasTable('bruteforce_attempts')) {