Ziggurats: repaired hexagon builder; tweaked map areas.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7663 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dploog  on November 27, 2008
FG7PALO63I4PMK3AFWUOXQX3WM5ECQHYGFGSM2FRSKZNUYBYVDIAC
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