Bump to v4.1.0.

_arrayConcat.js

@@ -0,0 +1,28 @@
+define([], function() {
+
+  /**
+   * Creates a new array concatenating `array` with `other`.
+   *
+   * @private
+   * @param {Array} array The first array to concatenate.
+   * @param {Array} other The second array to concatenate.
+   * @returns {Array} Returns the new concatenated array.
+   */
+  function arrayConcat(array, other) {
+    var index = -1,
+        length = array.length,
+        othIndex = -1,
+        othLength = other.length,
+        result = Array(length + othLength);
+
+    while (++index < length) {
+      result[index] = array[index];
+    }
+    while (++othIndex < othLength) {
+      result[index++] = other[othIndex];
+    }
+    return result;
+  }
+
+  return arrayConcat;
+});