Corrected small bug in index array update

lib/indexes.js

@@ -1,4 +1,4 @@
-var BinarySearchTree = require('binary-search-tree').BinarySearchTree
+var BinarySearchTree = require('binary-search-tree').AVLTree
   , model = require('./model')
   , _ = require('underscore')
   , util = require('util')
@@ -114,7 +114,7 @@ Index.prototype.remove = function (doc) {
  * Naive implementation, still in O(log(n))
  */
 Index.prototype.update = function (oldDoc, newDoc) {
-  if (util.isArray(oldDoc)) { this.updateMultipleDocs(oldDoc); }
+  if (util.isArray(oldDoc)) { this.updateMultipleDocs(oldDoc); return; }
 
   this.remove(oldDoc);
 

package.json

@@ -22,7 +22,7 @@
   "dependencies": {
     "async": "~0.2.8",
     "underscore": "~1.4.4",
-    "binary-search-tree": "0.1.4"
+    "binary-search-tree": "0.2.0"
   },
   "devDependencies": {
     "chai": "1.0.x",