Fix ( and & in Bootstrap's typehead

I have literally no idea what they were thinking when they wrote those
lines of code. Programming isn't about being so clever no one "gets" you
because your too cool to write code properly. Bootstrap is a perfect
example of why you should not try to write unreadable clever code -- it
doesn't work. I don't mean, it 't work as in "hey, it looks silly".
I actually mean, IT DOESN'T WORK!

Write code well, document it, and make sure it works. Don't try to be
the most clever tool on the Internet. It doesn't serve your product.