Broke up the monolithic divine_retribution() function somewhat.

Fixed a couple of bugs which turned up: Trog was being too lenient in monster count, ditto Beogh (in dancing weapon count.)

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1750 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on July 4, 2007
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