Hello,

I'm updating the recipe for LaTeX on kerTeX.

latex-lab is an addition in required but, if I'm not mistaken, not
really required (used perhaps "if available", from the README).

What do you recommend? Adding it since it could be used for ones
wanting to test and does no harm; or can be left aside for now?

-- 
        Thierry Laronde <tlaronde +AT+ kergis +dot+ com>
                     http://www.kergis.com/
                    http://kertex.kergis.com/
                     http://nunc-et-hic.fr/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89  250D 52B1 AE95 6006 F40C