Failures/Errors against master

[Luis Lavena]

Hello folks,

Before master gets added to Ruby 2.0, I think need help taking a look to this:

https://gist.github.com/4159029

I'll really appreciate some feedback (if possible) on the errors shown
above. I remember trying to solve those without luck due lack of
understanding of some of the tests intentions.

Thank you.
-- 
Luis Lavena
AREA 17
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Perfection in design is achieved not when there is nothing more to add,
but rather when there is nothing more to take away.
Antoine de Saint-Exupéry