simplicity rocks - even for something as simple as testing

We think simplicity is very important, and we admit that we're also not the best at it.  Today we added a little feature which struck as dirt simple and a great feature. 

We have many apps integrating with UltimatePay, and a frequent comment we here is that 1) it's hard to test and 2) when we're testing it's hard to know that we're testing.

So to make it easier we added a little yellow test mode bar on our test mode so that you know that you're in test mode.  Dirt simple.