Bump to v4.1.0.

_cloneBuffer.js

@@ -0,0 +1,19 @@
+import Uint8Array from './_Uint8Array';
+
+/**
+ * Creates a clone of `buffer`.
+ *
+ * @private
+ * @param {ArrayBuffer} buffer The array buffer to clone.
+ * @returns {ArrayBuffer} Returns the cloned array buffer.
+ */
+function cloneBuffer(buffer) {
+  var Ctor = buffer.constructor,
+      result = new Ctor(buffer.byteLength),
+      view = new Uint8Array(result);
+
+  view.set(new Uint8Array(buffer));
+  return result;
+}
+
+export default cloneBuffer;