isset check added to variable setting in setUrl
Fixed a small bug in Request (probably made another bug somewhere); added ability to directly get PDO object from DB; fixed small bug in ModuleController
Integer.php updated
Added Controller, HttpController, took entry point out of Module, ModuleAbstract is now just Module and the thing to bootstrap old modules is called CompatibilityModule.
Merged in 1.8.1 with changes to how Modules and Controllers work