Jkingdon/transpec

This converts kochiku to rspec's expect syntax instead of its should syntax. The rationale for doing so is at http://myronmars.to/n/dev-blog/2012/06/rspecs-new-expectation-syntax and can be summarized as "rspec shouldn't be monkey-patching almost every class on the system".

I also turned off should syntax so that future contributors to kochiku will not accidentally use it.

There are two commits; one just contains changes made automatically by the (awesome) tool transpec; the other contains the things I had to manually fix up.

@robolson