wallpaper-rotator: code cleanup
wallpaper-rotator: new INSTALL and HELP options
FIX: current script killed when START, RESTART selected
FIX: replaced ~ bashism with /home/me
wallpaper-rotator: v0.4.1: FIX: START always executes on INSTALL
wallpaper-rotator: v0.4.2: FIX: Always exit when START set
wallpaper-rotator: v0.4.3: NEW: Added new menu entries