dahernan/goHystrix — pull request #5 by ZeissS (2014-03-25 15:46:56+00:00)
Title: Move fallback into separate interface

This PR implements dahernan/goHystrix#1 by moving the `Fallback()` method into a separate interface, thus making it optional.

If a fallback is needed, and the command does not implement a fallback, an error is now returned.