-The main event polling loop in I_GetEvent should ask SDL to filter out mouse events since it does not process them.

git-svn-id: http://odamex.net/svn/root/trunk@4005 b0bcef46-2027-0410-bd56-ab726e9a1d04
-DirectX & GDI need to use a 32bpp video mode to prevent palette problems (see bug 624).

git-svn-id: http://odamex.net/svn/root/trunk@4006 b0bcef46-2027-0410-bd56-ab726e9a1d04