Speeded up greedy explore by moving can_explore out of the floodloop. Still

isn't exactly a speed demon.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@570 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on December 5, 2006
3YK4G4IQBXW63HPGU5WRTV6L2FCMKAK4DOTCHFK2FNSB5B3Y3PVQC
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