transpec results (fix rspec deprecations)

This is the result of running transpec to clean up rspec deprecations and use the [new expectation syntax](http://myronmars.to/n/dev-blog/2012/06/rspecs-new-expectation-syntax).

This doesn't need to be merged: you can rerun `transpec` on master at anytime.  I just created a PR so you can get an idea of what the changes *will* look like when there's a lull in PRs that might be a good time to refactor.