This reverts commit cf4f91f1a2, which
removed all of the spanish dictionaries. These dictionaries were
previously part of the “Red IRIS” project, but they are now part of the
“Recursos Linguísticos Abiertos del Español” project.
Additionally, this cleans up the implementation of all the Hunspell
dictionaries, since the supposedly internal `mkDict` function was either
overspecialized or overgeneralized. Now we don't try to abstract beyond
what makes sense to be abstracted.
29e04dfdaa