added tests so we can easily run QUnit tests in headless mode inside a stand alone JUnit test without Selenium; with just Rhino. JsArrayTest works great in Rhino stand alone and in a browser; but not Selenium; not sure why yet...

libraries/stdlib/test/js/JsArrayScript.kt

@@ -0,0 +1,17 @@
+package jstest
+
+fun testSize(): Int {
+    val a1 = array<String>()
+    val a2 = array("foo")
+    val a3 = array("foo", "bar")
+
+    return a1.size + a2.size + a3.size
+}
+
+fun testToListToString(): String {
+    val a1 = array<String>()
+    val a2 = array("foo")
+    val a3 = array("foo", "bar")
+
+    return a1.toList().toString() + "-" + a2.toList().toString() + "-" + a3.toList().toString()
+}