Project Wizards: Introduce notion of project directory, polish.
- Introduce project directory and "use" flag to file manager, use that in new item dialog - Add configuration under Project settings, rename it to "General" - Make wizards create project names as "untitled1.." - Remove modules page from Qt application wizards (parametrizable) - Give Utils::ProjectIntroPage a "Set as default location" toggle. - Introduce wizard dialog base classes for handling that. - Introduce notion of "last visited directory to file manager" for open and non-project wizards, route open through file manager. - Clean out QmlAppWizard Task-number: QTCREATORBUG-333 Rubber-stamped-by: con <email@example.com>