I found the Rally Iteration Health custom app (https://github.com/kcorkan/rally-iteration-health-1). Love it.
Of course, I wanted to add some of our own metrics to it. So, I forked the code in Github, intending to modify it. First, though, I ran it as downloaded, and got an error.
Rally.loadScripts(<%= JSON.stringify(js_files) %>
in file "app-debug-tpl.html"
Any hints are appreciated.