Small update to vc debug compile

git-svn-id: http://odamex.net/svn/root/trunk@4045 b0bcef46-2027-0410-bd56-ab726e9a1d04
Don't test joystick button against alphakey.

git-svn-id: http://odamex.net/svn/root/trunk@4046 b0bcef46-2027-0410-bd56-ab726e9a1d04