Element84/bad_calculator — pull request #1 by mhuffnagle (2013-04-28 18:37:57+00:00)
Title: BadCalculator.add always returns one more than the correct value

In this example, add should return 3. Instead, it returns 4. I'll fix this add submit a pull request later this afternoon.

```
[1] pry(main)> require 'bad_calculator'
=> true
[2] pry(main)> BadCalculator.add(1,2)
=> 4
```