Dashboard: Campaign progress icons

[olofson]

Instead of the rather confusing region/level numbers, there should be some sort of icons or other graphical representation of the progress, also serving as a full campaign overview.

[olofson]

Still not sure what to do about this... The "overview" part should probably be handled by a fullscreen world map of some sort - maybe some animated 3D planetarium style thing. Either way, it's kind of silly to put much effort into this now, as all levels will be redesigned for 0.8.x.