One more code styling fix

Fix the lost the code styling

README: Give some more context on the addPill & Reset functions

Add DOM documentation, add a couple comments

Add value documentation

Don't let the click event propagate out of the pill

Update the readme to match demonstrate val/text splitting

Make the pill separate its value from its display text. Clean up Pill constructor

Switch to code blocks in the readme

Document the reset method in the readme

Combine the reset & setValue methods into just the reset method

Add reset & setValue functions for PillCollections

Forgot one prefix

Get rid of the vendor prefix's for border-radius, IE9+ & other new browsers dont need the prefix

Add very basic style