Merge pull request #69 from recca0120/patch-1

fix test bug when use sqlite database

Author: taylorotwell

database/migrations/2014_10_12_200000_add_two_factor_columns_to_users_table.php

@@ -32,8 +32,7 @@ public function up()
     public function down()
     {
         Schema::table('users', function (Blueprint $table) {
-            $table->dropColumn('two_factor_secret');
-            $table->dropColumn('two_factor_recovery_codes');
+            $table->dropColumn('two_factor_secret', 'two_factor_recovery_codes');
         });
     }
 }