Fix the release script's destination directory.
Fix the release script's destination directory.

The release script was placing things in product directories off the
root, instead of in /releases/. This was a copy-paste issue from an
older broken script in Djblets.

halvorlu/rbtools,haosdent/rbtools,beol/rbtools,davidt/rbtools,1tush/rbtools,davidt/rbtools,beol/rbtools,haosdent/rbtools,reviewboard/rbtools,reviewboard/rbtools,davidt/rbtools,datjwu/rbtools,halvorlu/rbtools,reviewboard/rbtools,halvorlu/rbtools,beol/rbtools,haosdent/rbtools,datjwu/rbtools,datjwu/rbtools