Corrections to manual (patch by maiermirk) and

fix to freeing self from net.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@2775 c06c8d41-db1a-0410-9941-cceddc491573

Created by  j-p-e-g  on November 6, 2007
6RJTF6NFXGD7TVUFYCPLY7N2AJ43SNDAECUTPVMGX54XJ6XZ6C4QC
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