Switch the key for interlevel travel from Ctrl-G to G.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@5172 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on May 21, 2008
NPCS4YLWULGF5Y5PIC2NYMKM3DUPGBLWU3SYVMUIFR25EIZ772BAC
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