The constructor of the class is now private, instantiation happens with Url::fromRequest and Url::fromPath. Also updated all occurences of Url and fixed the Qlink helper to not overwrite the baseUrl with null values refs #4381
Rework application bootstrap, move user object to its new location, implement web request class to handle the user object. refs #4066
refs #4381
Add new configuration controller for the configuration controllers later. refs #4299