The list of languages available to the gfxboot menu is stored in a file
which used to be called "languages". However, when using isolinux this
file can't be found because its name is too long (9 chars). Renaming it
to langs fixes that problem

This reverts commit 9ab115e43e7aea43b81309a0768f921114c48035.

The changes to reduce the size of the status bar exhibited a bug in the
way the language menu is layed out (vertical stripes all over the
place). panel.text.y was 0 and we tried to substract 1 from it when
trying to draw the lang menu background which didn't work too nicely.
This commit is one way of fixing it (by changing the way we calculate
the number of lang entries to display in one column), but I'm not sure
this is the best way to do it.

The autodetection of 32/64 ISOs uses getcwd which currently always
return '/' in the COM32 module so this can't work. Change it to check
for hardcoded paths working for mandriva CDs. Run a linux64 image when
using 64 bit mode since otherwise I'm not sure how to get gfxboot to
pick the proper kernel :-/

When hiding an entry, gfxboot gets confused because it renumbers the
entries and it passes the wrong entry index to the bootloader.

(second part of the commit)