[latexrefman] karl resignation

[Pablo González L]

First of all, thank you very much Karl for creating and maintaining
this project, he has always been my reference guide.

> Pablo, interest in contributing directly would be most welcome.
>
I wish I could collaborate, but, svn and Texinfo are not very well
known to me, in January I will have some time, anyway, this guide is
very solid, just some minor updates and it would still be perfect :D
The best for everyone
Pablo