r10849: expo | 2006-08-15 12:14:02 +0100
Updated with the results of Olly and Jenny's surface work
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Add submap outlines to the overview map (click on the square at the top-left
to jump to the submap).
Tweak the drawing order - the "vague location" caves get plotted first, so that
we don't end up drawing their circles over something interesting, and the blob
for a cave is now drawn after the label for that cave which means the blobs are
now whole.
