Renamed the URL class to URLManipulator
Added a ModuleInfo interface that will be used to give module information when we switch from using XML files for modinfo
Added a ModuleUrl class to represent a URL that a module handles and contain metadata (such as permissions) for this module handling this URL
Added a Permission class used to represent a permission in the system
Added comments to the different configuration files
Added methods to invalidate a session cookie and session entry in the database

Invalidates a session data in the database if the session has expired