HipChat integration links are wrong

Hi! I just set up the HipChat service integration on a bunch of our repositories, and while it works great otherwise, the hostname on the links to specific changesets is wrong.

For example, I got a link like:

https://www.hipchat.com/mka/[the repository]/changeset/[the changeset]

in our chat room – the host part should be bitbucket.org.