Put skeletal dragons back in the dragon genus, and treat all

dragon-types consistently when dealing with weapons of dragon slaying (dragons, draconians, dragon-transformed players, zombified dragons, and zombified draconians). New function is_dragonkind() handles this.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7578 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on November 24, 2008
4M56FGNV3IDCB7I4H7TMK3EWSQKWEJ5Z2AKIMHED272TOB34DO4QC
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