Merged r2793 (better ability descriptions for Nemelex)

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@2794 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on November 7, 2007
6AITV67YC7W5Z4ICXKUILSPOUXNYMXY5KQ4VNBZF2X2QTC7LBNZAC
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