Handle redactions (both live and historic).

lib/utils.js

@@ -148,6 +148,7 @@ module.exports.findElement = function(array, fn, reverse) {
  * function signature <code>fn(element, index, array)</code>. Return true to
  * remove this element and break.
  * @param {boolean} reverse True to search in reverse order.
+ * @return True if an element was removed.
  */
 module.exports.removeElement = function(array, fn, reverse) {
     var i;
@@ -155,17 +156,19 @@ module.exports.removeElement = function(array, fn, reverse) {
         for (i = array.length - 1; i >= 0; i--) {
             if (fn(array[i], i, array)) {
                 array.splice(i, 1);
-                return; }
+                return true;
+            }
         }
     }
     else {
         for (i = 0; i < array.length; i++) {
             if (fn(array[i], i, array)) {
                 array.splice(i, 1);
-                return;
+                return true;
             }
         }
     }
+    return false;
 };
 
 /**