Fix Spanish translation

[alx741]

Wow! I failed to create a _layouts/es/ for it and breaked the page, sorry about that! This will fix it.

[rust-highfive]

r? @brson

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[alilleybrinker]

This is also addressed in #682, which also renames es/ to es-ES/, for consistency with the two-part language codes used elsewhere on the site.

[alx741]

mmhh... In that case that should be merged first, then this PR could be rebased from there and merged as well so the _layouts/es has the Spanish translation instead of just the default English one. Edit: I guess the other way around would work as well

[brson]

Looks like the other is merged and this is ready for a rebase.

[alx741]

Perfect, that should do it

[alexcrichton]

@alx741 it looks like the files are now located as es-ES, want to update that location instead?

(sorry for the delay!)

[alx741]

Sure, Now it should be ok

[alexcrichton]

Oh I think this is now generally in footer.html, so perhaps just the "Nuestro ..." phrase could be updated and otherwise include footer.html could stay?