Fixed .htaccess and /examples/ link bugs

* Renamed .htaccess to demo.htaccess as the .htaccess could cause
  a 500 Error on certain webserver setups. The .htaccess is only
  meant for demo purposes, and should never cause an error.
* Fixed 'examples' link.  Issue one being it was an absolute and not
  a relative link, two being the link could possibly end up being
  broken on certain webserver configurations.

As reported by Robdgreat