Hi Kris,
I've downloaded and installed the 5.2 full installer - great work btw, so much easier to get started with than 5.1 - but it does not seem to have the Human Task Service WAR that you mentioned in your release notes.
Also, wrt the documentation, on the chapter about the new designer plugin, the required version of Graphiti should now be 0.8.0, and not 0.7.1 as stated.