Make Options.race and Options.class translate correctly, no matter whether

the old or new species/classes order is used. Entails some more unborking of newgame.cc.

Also: make Esc leave the species selection screen (synonym for 'X', quit the game), and use it to jump back to species selection from all other selection possibilities (class, book, weapon, god) as a synonym for Bksp.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3505 c06c8d41-db1a-0410-9941-cceddc491573

Created by  j-p-e-g  on March 2, 2008
JDM5R3HYGXKQKZWY35QZ2KOB24TFZ3FW2PCNXCRCMWG72AZC5ZXQC
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