Adjust level for an ice statue vault (Darshan).

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7514 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dploog  on November 19, 2008
KDOWE7Y3DTDJHFSMNAMQ5TT7AP65APGBNBYBFKMKZXZ4E4MIDO7AC
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