Fixed problems suggested by Travis

bytebuffer/bytebuffer-tests.ts

@@ -0,0 +1,8 @@
+/// <reference path="bytebuffer.d.ts" />
+
+import ByteBuffer = require("bytebuffer");
+
+var bb = new ByteBuffer()
+            .writeIString("Hello world!")
+            .flip();
+console.log(bb.readIString()+" from bytebuffer.js");