Add fix for InvocationTargetException while running doclava.

If you see this error, this fix should help:
In doclet class com.google.doclava.Doclava,  method start has thrown an
exception java.lang.reflect.InvocationTargetException
com.sun.tools.javac.code.Symbol$CompletionFailure: class file for
sun.util.resources.OpenListResourceBundle not found

More details here:
https://code.google.com/p/android/issues/detail?id=1261