More entry vaults (David).

These vaults need some code fixes (traps should be in-depth, need a symbol for deep water), will do it right soonish now.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@806 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on January 8, 2007
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