Add chinese/japanese scripts to benchmark

[pvdz]

Add some unicode in the mix

[pvdz]

Turns out not to be so trivial to find sources that do this.

[pvdz]

Looks like there aren't that many coders that actually use unicode in their variable names. It occurs in strings and comments, but those are very cheap for the parser because it doesn't have to care about them there.

Maybe I should just add some Greek letters to an existing source, just to forcefully trigger the unicode path. Ooh, or replace all occurrences of $ by λ in jQuery :D