Should be able to click a features path and view the source feature file

This functionality is not critical for this iteration, will hold it off for another iteration

Initial functionality implemented.

Now need to implement the enhanced version which will use a lightbox type dialog to display the feature files content.

For this change we will also remove the original file panel icon and place the link on the actual file path

Now implemented the client side functionality to retrieve a source feature file via AJAX and display the response in a jQuery-UI based dialog box.

Should review the action name, along with its layout, with the view to make the contents more presentable.

Also need to implement spec for our AJAX call, which we had trouble getting to pass.

The action name has been renamed to source which is more meaningful, still need to implement acceptance tests for viewing a features source file from a list of features.

Moving this to another iteration as it is not essential functionality