added bootstrap 3rd party dependencies

lib/3rdparty/systemjs/babel-helpers/slicedToArrayLoose.js

@@ -0,0 +1,17 @@
+export default (function (arr, i) {
+  if (Array.isArray(arr)) {
+    return arr;
+  } else if (Symbol.iterator in Object(arr)) {
+    var _arr = [];
+
+    for (var _iterator = arr[Symbol.iterator](), _step; !(_step = _iterator.next()).done;) {
+      _arr.push(_step.value);
+
+      if (i && _arr.length === i) break;
+    }
+
+    return _arr;
+  } else {
+    throw new TypeError("Invalid attempt to destructure non-iterable instance");
+  }
+});