Added the underscore node_module.

node_modules/underscore/amd/lastIndexOf.js

@@ -0,0 +1,9 @@
+define(['./findLastIndex', './_createIndexFinder'], function (findLastIndex, _createIndexFinder) {
+
+	// Return the position of the last occurrence of an item in an array,
+	// or -1 if the item is not included in the array.
+	var lastIndexOf = _createIndexFinder(-1, findLastIndex);
+
+	return lastIndexOf;
+
+});