Okay, we now have a stable v0.2 of Harlie, and you can pull this from the branch "v0.2". (You may get a warning about it being ambiguous. This is because I was stupid and named the branch the same as the tag. Please go easy on me, I'm slowly getting the hang of git.)

Or, if you hit the downloads page on the wiki, you can grab it there.
http://www.furryhelix.co.uk/wiki/index.php/Downloads

EDIT: Just wanted to clear a few things up… There are a lot of things missing, and this is more of a preview of where Harlie is headed rather than a fully functional release. There's a list of things that need to be done, after the break.

A quick list of what's missing:

• Privileges support— Currently, anyone can use the few commands that are available.
• Plugins— I'm trying to work through the documentation for PoCo::PluginManager, but it's not quite as good as the docs for PoCo::IRC. As soon as I figure out what needs to be done, I'm going to start on the plugins support code.
• Probably more things than I can remember at the moment.

However, if you want to test it, go right ahead but be aware that I'll still be working on it quite a lot.

TL;DR: This is not a full release. Things are missing.