Implemented 1601227, pickup_mode.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@484 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on November 23, 2006
HL6BR2XEXRPWBU4MQNI52H65OSJB46KOLC4R3KWNQYDEPPXBAH3AC
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