Bug#1080322: latexmk: add -parallel=N option

[Barak A. Pearlmutter]

> Many thanks for that (to whom?)

I believe the tradition, dating from the Neuromancer trilogy, is to
attribute things of this sort that emerge from cyberspace to Haitian
Voodoo deities. In this case Ayizan, load of initiation and sacred
spaces, would seem appropriate.