Match hyphens as things that can occur before or after single quotes.
Match hyphens as things that can occur before or after single quotes.

Fixes issue 20.

mrdomino/jsprettify,H14/jsprettify,H14/jsprettify,H14/jsprettify,mrdomino/jsprettify,mrdomino/jsprettify,H14/jsprettify,mrdomino/jsprettify