Fix #12886. Fix map file reference in .min.js file.

Cherry picked from e348b4060848b46a6c4376661c093e0f0a3ef9e7 .
Update Sizzle
Revert grunt, grunt-contrib-jshint, and grunt-contrib-uglify versions used in build until we can adapt Gruntfile to support grunt 0.4.0rc5 changes
Update Sizzle
Update copyrights used in file headers.
Leave out the web site, you know where to find us.