Dependencies

[Karl Berry]

    While customizing TinyTeX (thanks Yihui!) I've noted a spurious 
    dependecy, very likely ages old: mex (polonized tex) depending on pl 
    (Literate Programming for Prolog with LaTeX) ;-)

The "pl" package in TeX Live is pl-mf on CTAN (created that way by
Staszek, or maybe te, as I recall), so the dependency is correct. This
name confusion is one of the things I hope to clean up after you make
that pending upload we've been working on. (I hope you will merge
pl-tfm[.zip] into pl-mf, too, BTW.)

Independent of that, I think the pl package on CTAN should be renamed,
but I suppose it's too late for that. Anyway. --thanks, karl.