Updated to handle case of 'FBar' to 'f-bar' and added Grunt build process for browser

An input of a string like "FBar" should produce a paramCase output of "f-bar." This pull request updates the code to handle this condition while still passing all the mocha tests. This pull request also updates the tests to include the case of "FBar."

In addition, this pull request includes a Grunt build process to make this code work in the browser.