Fix 1933066: Ghosts not being poison resistant.

Fix part of 1940994: Identify scrolls now get properly identified if applied on an unID'd item right away, so that if you get more rounds it isn't offered to you again.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@4257 c06c8d41-db1a-0410-9941-cceddc491573

Created by  j-p-e-g  on April 16, 2008
SG76BPJKTQGDFNP5QFMAVR6H72FMMAYCECVGSWWSCLMAVQX7E3FQC
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