[luatex] messages from babel

[Javier Bezos]

Reinhard,

 > Babel pretends that all these patterns are loaded already but in truth
 > only those actually needed are loaded at run-time.  Hence the message
 > is misleading.

Yes, it is.

 > I suppose that the number of supported languages is determined when
 > the format file is built.  If it's possible to detect on which engine
 > babel is running, maybe the word "loaded" can be replaced with
 > "available" when appropriate.

I'm currently working on a revamped loader for luatex, which will
load, well, nothing (except english), not even the information in
language.dat.lua, because the format doesn't need it at all.

Javier