Reduced PNG sizes using PNGGauntlet for Windows (3 passes)
For clear_left.png, Beyond Compare shows important difference when
compared with original. However, the optimized file itself works fine.
Signed-off-by: ADTC <send2adtc@gmail.com>
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.
