[Cin] CinGG manual to Latex

[Andrea paz]

> Hi Andrea,
>
> Your last commit has conflicting merge. See <<<<<<<< lines in .tex
> files. We have to deal with it manually.
> I've made my changes based on your version.
> I can sync our versions again based on your version.
>
No, don't merge my branch into yours. I could no longer sync your
repository with a pull request on the web. I think I managed to do it
with the terminal following your instructions (there was no "git
fetch" to be able to continue). Now I'm in sync with you, but by
opening "CinelerraGG_Manual.tex" I get a lot of errors and I don't
compile the pdf. I've definitely made a mistake, but I don't know
where. In any case your repository should be correct, the problem is
mine (I think), so don't merge.

I try to make corrections manually, and then I'll let you know.