updated dependencies and fixed build

[remojansen]

I was investigating the failing unit testing that was breaking the build. I ended up asking on stackoverflow:

http://stackoverflow.com/questions/28956295/estrange-behaviour-in-javascript-array-clone-equality-assertion

We can't use contain our include here:

arrContainer.should.not.contain(objNeedle); // fails
arrContainer.should.not.include(objNeedle); // fails

Because when looking for an object inside an array chai will use deep equality.

[elliotf]

Published v1.5.0

[elliotf]

Thank you, @remojansen !