autopickup_no_burden no longer influences manual pickup.

Fixes 2375482. This might have unintended consequences; jpeg, can you review?

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7824 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on December 13, 2008
MDJV6Y2GVK2TOULGKGNTAYJFSFVMXODLZ6C75WNRIPGYHVFAXPIAC
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