Setting temporary tiles for new uniques (and adding a real tile for Prince Ribbit.) Also, auto-excluding Roxanne.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@8222 c06c8d41-db1a-0410-9941-cceddc491573

Created by  ennewalker  on January 4, 2009
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