Reorder & add separators in Help menu
Rename `Auto-Shutdown on downloads completion` to `When downloads done`
Capitalize menu items, modify accelerator
Change project directory structure according to application structure.
Change 'nox' configuration option to something more meaningful 'nogui'.
Rename 'Icons' folder to 'icons' (similar to other folders).
Partially add 'nowebui' option support.
Remove QConf project file.