Move URL class to use autoloading
Remove alert_confirmation_advert(), it's no longer used
Move alert_details_to_criteria into ALERT class
Move ALERT class to use autoloading
Extract RedirectException from hansardlist.php and add namespace
Move HANSARDLIST class to use autoloading

Also rearranges the order of classes in hansardlist.php so they load.
Collapse the Hansard class into HansardList

Hansard previously extended HansardList but did not represent distinct
functionality.
Move DEBATELIST class to use autoloading
Move WRANSLIST to use autoloading
Move WMSLIST to use autoloading