Unlink db file if it is stale.

Function signature was wrong for getLongDescription, fixed.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1338 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on April 20, 2007
5SFYYTKXTWLSBXB4PUB6G3E47W6DNROQNDLN3UJZQ4FN7ML3MADQC
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