Allows searching for & and other special characters

This allows me to search for special characters like ampersand in select boxes. I have a client which has trouble without this as they have large selects and a few options are only findable via ampersands. (i.e. `a&b` will not be found easily as `a` and `b` are far too common).

I don't know if this might break something (why the `html()` was needed), but for me it seems to work.