[1748706] Increase monster spawn rate after the player gets the Orb, add

Pandemonium-type demons into the defender mix.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1773 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on July 6, 2007
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