Minor improvements.

Some minor things:

- Added Go for comparison.  Unsurprisingly (to me at least), it is quite fast.
- Changed to only use one ruby.  I tried several versions and they all timed out about the same.
- Fixed (?) the Java target

One other thing: I couldn't get the ecl stuff to work at all, I don't have an init.lisp file or a load-or-install function defined anywhere, and I'm not too familiar with ecl.  Any suggestions?