fixing error when dbus program was not running
making so next wallpaper cannot be previous
converting to spaces to conform with pep8 ... yah ... I gave in
fixing more dbus stuff to make it work right.
fixing to be more verbose and to avoid infinite loop when selecting next wallpaper
adding settings files for extension itself
fixing for version 3.6
fixing check for wallpaper size.. was checking _next when it should be _wallpapers
few fixes and changes..
so.. missing vars are bad.. mmkay