title: Can a freemarker interpolation contain an interpolation?
body: <p>Let's say I have Freemarker variable A that contains the name of another variable on the hash tree, say. "B." I'd like to use a to read the value of B so, for example, if B contained "C" I could tell Freemarker to output C using A: <code>${${A}}</code>
  should result in the output of "C". Naturally, this doesn't work in Freemarker, but is there a way to accomplish this?</p>