2056015: allow '^' during branch selection in travel.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@6966 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on September 21, 2008
C4FVDACJIRNJLTWB2PQYCU6PHYNJJ4HYSXFQ4XTSLIDU22UPFOMAC
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