////////////////////////////////////////////////////////////////////////////////
/// @startDocuBlock JSF_foxx_controller_before
///
/// `Controller.before(path, callback)`
///
/// Defines an additional function on the route `path` which will be executed
/// before the callback defined for a specific HTTP verb is executed.
/// The `callback` function has the same signature as the `callback` in the
/// specific route.
/// You can also omit the `path`, in this case `callback` will be executed
/// before handleing any request in this Controller.
///
/// If `callback` returns the Boolean value `false`, the route handling
/// will not proceed. You can use this to intercept invalid or unauthorized
/// requests and prevent them from being passed to the matching routes.
///
/// @EXAMPLES
///
/// ```js
/// app.before('/high/way', function(req, res) {
///   //Do some crazy request logging
/// });
/// ```
///
/// @endDocuBlock
////////////////////////////////////////////////////////////////////////////////