Apply evktalo's patch in [2586241]: Update level_design.txt and tweak

.des files.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@9078 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on February 14, 2009
GTXLAKI6NJWAEVR4GVLG3DL22OGYLTZOPD54IJEQDRSMOHQBK2EQC
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