Bump to v4.14.0.

subtract.js

@@ -17,7 +17,7 @@ define(['./_createMathOperation'], function(createMathOperation) {
    */
   var subtract = createMathOperation(function(minuend, subtrahend) {
     return minuend - subtrahend;
-  });
+  }, 0);
 
   return subtract;
 });