Update the focusing method from jQuery's .select to .focus

The .select method appears to be only applicable for input fields of type='text'.  Given the current implementation you are unable to focus on elements like buttons or select boxes.  Changing the focusing method from .select to .focus resolved this issue and I could find no negative side affects to the change.  

The Plunkr below help illustrate the differences between the two methods.
http://plnkr.co/edit/RsZlXej3LGghg1z3XzPM?p=preview
karma-mocha version 0.1.4 appears to want karma 0.12.8.  Upgrading to the latest of karma caused to the specs to fail outright so I locked down the version of mocha to avoid the issue.