init_pandemonium() needs to re-do dgn_set_colours_from_monsters(),

since it is called after level generation is complete.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@2330 c06c8d41-db1a-0410-9941-cceddc491573

Created by  zelgadis  on October 5, 2007
KB6TVLJT7IHNDSKAGVT6GDAP3JZ5HGBZS3Q3RX62YN7VDKWIKB5QC
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