Fixing Accessibility Issues

[mgifford]

There are some outstanding accessibility issues which should be fixed. Both empty links and undefined form elements.

There needs to be additional semantics added to this to see that assistive technology users can properly know what they are clicking on.

This is entirely based on evaluation of http://antenna.io/demo/jquery-bar-rating/examples/ using the Wave Toolbar http://wave.webaim.org/extension/

Adding more information about what the links are will give context to help users know what they are selecting.

[PSF1]

With the "showValues" option we can display the labels.

[PSF1]

The missing label tag maybe that was not inserted manually.

[PSF1]

I added a pull request with a partial solution.

#123