added to header repo, version.  shortened

Do not need to add the entire MIT license; for those who are worried, they can find your project.  Saved a HTTP packet.

Made finding your project & version much easier ;)  Needed because you can't depend on your filename to stay; JS can be concocted, renamed in caching, etc.

Edit: I added the `!` to `/*!` & `@licence` because many minifiers (eg UglyJS) will keep that comment with those flags.  Otherwise, when minified, your header will be removed.