In choose_random_monster_on_level(), decouple the preference for named

monsters from the preference for priestly monsters; if both are used, named priestly monsters are most likely to be blessed.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@9276 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on February 28, 2009
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