Code cleanup and renaming of static methods, mostly for decks.cc and

dungeon.cc.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3984 c06c8d41-db1a-0410-9941-cceddc491573

Created by  j-p-e-g  on March 31, 2008
B7MSPF6X2RLGWN4M6ZZF3WSOPKGYPTTD7LIJVST7DXN27DG6JHNAC
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