@OnesAndTwos : Adding tests for popline

Hi,

I really liked your plugin but one of the barriers to us using it at the company I work at was the fact that it had no automated tests. Please find the beginnings of adding integration tests against the popline editor. These are ran using Jasmine and PhantomJS via the command "grunt test". If you like and accept, i'll continue adding tests for each plugin (and hopefully carry on refactoring to make the tests prettier :+1: )

Thanks,

Mike