"Hello World" routing

Simple "Hello World" plugin, which illustrates URL routing.

Shows developers how to create minimal URL routing plugin. Includes a simple router with optional parameters.

1. Upload HelloWorldRouting directory to your website's Plugin  directory.
2. Login to the administration area.
3. Go to Plugins panel, locate Hello World routing plugin and click activate button.

• Type the following text in your browser's address bar: http://www.example.com/hellorouter. The browser displays text Hello World!
• Now specify the first parameter http://www.example.com/hellorouter/John. The browser displays text Hello John!
• The example uses a second parameter as a last name, http://www.example.com/hellorouter/John/Smith. The browser displays text Hello John Smith!