Disabled stderr log output during the BanchaDisatcherTest, BanchaBasicTest and BanchaExceptionsTest. These tests caused those extra messages in console and Travis.
In BanchaDispatcher replaced $obj->log with CakeLog::write.
Disabling log streams is only supported from CakePHP 2.2 and greater. Added version check. In older versions, just drop stderr log stream.
Merge pull request #115 from andrejs/master

Disabled stderr log output during integration test cases