Enhancements to documentation generators (samples, default values, etc) (#790)

* enhancements to doc generators (samples, default values, etc)

* add 3.3.x to PR template

samples/documentation/dynamic-html/main.js

@@ -0,0 +1,7 @@
+var express = require("express")
+
+var app = express();
+var docs_handler = express.static(__dirname + '/docs/');
+app.use(docs_handler);
+//  start the server
+app.listen(8002);