Allows GET parameters with mod_rewrite

Unlike other frameworks, the Apache url rewrite is done transparently so that the framework receives all parameters in the url, including GET variables.

Then, instead of banish these parameters, an Input library is used to sanitize them.

TO-DO: Create a manual routing system that allows custom url's to be redirected to different controller/action pairs. Adding these lines in the .htaccess file is not recommended since it will break the transparent GET passage for those routes.

Example: param1 works and param2 works too