Only trigger the "attack neutral" conduct upon attacking neutral god

gifts (i.e., neutral monsters that don't attack).

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@4105 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on April 7, 2008
RYK4OAO72K3TDOSKJ2GTQHD3LSMDSB6TQXFZWHPB6FYETNVFNVIAC
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