added whole system from ola4doc

sys/node_modules/es5-ext/array/#/uniq.js

@@ -0,0 +1,13 @@
+'use strict';
+
+var indexOf = require('./e-index-of')
+
+  , filter = Array.prototype.filter
+
+  , isFirst;
+
+isFirst = function (value, index) {
+	return indexOf.call(this, value) === index;
+};
+
+module.exports = function () { return filter.call(this, isFirst, this); };