FE/Qt: Rest of the icons update (color format fix).
FE/Qt: General Icon Update: Keyboard/mouse icons.
FE/Qt4: small updates to some icons
FE/Qt: Corrected mouse integration icons for the disabled mouse integration state (the arrow on the mouse was blue while should be grey).
renamed VirtualBox4 to VirtualBox
purge the obsolete Qt3 GUI
export to OSE