title: Acts-as-tree in Rails3?
body: <p>I need to use Acts As Tree in my Rails3 project (ruby 1.9.2). But, there are lot of forks on github, so I don't know which should I choose, and which is used by other developers?
  On Railsplugins.org there are <a href="http://www.railsplugins.org/plugins/376-acts-as-tree" rel="noreferrer">http://www.railsplugins.org/plugins/376-acts-as-tree</a>, but last commit was from March...</p>