Hi Guix,

this is the second batch of Haskell packages we need to have a Pandoc
package.  These patches apply after the other patch set I sent to the ML
yesterday.

(BTW: if you just need a simple markdown converter (with an extensible
grammar) I recommend peg-markdown.  It has very few dependencies and is
a good alternative for many applications that really just want to
convert markdown.)

~~ Ricardo