boilerplate: reduce & add project name

+ project name to help determine what the script is when filename is lost (eg concoction)  Listed as URL, since Googling 'google web animations` is not too likely to land here ;)
- removed license details; if people want to 'obey' the license, they either already know what it is or can follow the URL. Otherwise, eats bandwidth & storage space (more worried about mobile)

cheers