I have now made an 0.5.0 version of cl-json, made tar files, and tagged it v0.5.0. Seems github automatically serves zip-files of tagged versions.
Also I made a nickname cl-json that was once requested here, and I have mailed to zach/quicklisp to change their pointer.
Also I made an attempt to fix the one remaining failing testcase, but I didn't succeed.
/Henrik