DrJava Legacy SVN Repository

Replaced edu.rice.cs.util.Lambda with edu.rice.cs.plt.lambda.*. Refactored all use sites. (Note some terminology changes: Lambda<To, From> becomes Lambda<From, To>; al.apply(arg) becomes l.value(arg) or r.run(arg).) Some uses of Lambda (such as Lambda<Object, Object>) seem like they're actually Runnable1s (or even just Runnables), but I was conservative in my translation, only changing the arity on types that previously used Void as a type argument.