Outsource the list of colors in weird_colour(), and add a few more

entries to it.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@5266 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on May 26, 2008
VSO3NZWH2I6K7D53CETCJLQYDWAK4O63E7K4FDZWL7YZWR7I7WLQC
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