Revert "Commit updated Javascript packages"

This reverts commit a88734348a.

build/javascript/node_modules/concat-map/index.js

@@ -1,13 +0,0 @@
-module.exports = function (xs, fn) {
-    var res = [];
-    for (var i = 0; i < xs.length; i++) {
-        var x = fn(xs[i], i);
-        if (isArray(x)) res.push.apply(res, x);
-        else res.push(x);
-    }
-    return res;
-};
-
-var isArray = Array.isArray || function (xs) {
-    return Object.prototype.toString.call(xs) === '[object Array]';
-};