Bump to v4.17.0.

cloneDeep.js

@@ -1,5 +1,9 @@
 var baseClone = require('./_baseClone');
 
+/** Used to compose bitmasks for cloning. */
+var CLONE_DEEP_FLAG = 1,
+    CLONE_SYMBOLS_FLAG = 4;
+
 /**
  * This method is like `_.clone` except that it recursively clones `value`.
  *
@@ -19,7 +23,7 @@ var baseClone = require('./_baseClone');
  * // => false
  */
 function cloneDeep(value) {
-  return baseClone(value, true, true);
+  return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
 }
 
 module.exports = cloneDeep;