Bump to v3.2.0.

collection/reduce.js

@@ -8,6 +8,12 @@ define(['../internal/arrayReduce', '../internal/baseCallback', '../internal/base
    * value. The `iteratee` is bound to `thisArg`and invoked with four arguments;
    * (accumulator, value, index|key, collection).
    *
+   * Many lodash methods are guarded to work as interatees for methods like
+   * `_.reduce`, `_.reduceRight`, and `_.transform`.
+   *
+   * The guarded methods are:
+   * `assign`, `defaults`, `merge`, and `sortAllBy`
+   *
    * @static
    * @memberOf _
    * @alias foldl, inject