crypto-keys and cmdinfo

[Anil Madhavapeddy <anil@xxxxxxxxxx>]

I've started porting Haris' excellent crypto_keys library to be suitable for 
release.  There is proper command-line parsing and man page generation now, 
thanks to this amazing library:

http://erratique.ch/software/cmdliner/doc/Cmdliner.html

Anyone wants to try it, install OPAM from http://github.com/OCamlPro/opam, and 
add the Mirage dev repository:

$ eval `opam config -env`
$ opam remote -add dev git://github.com/mirage/opam-repo-dev
$ opam install crypto_keys

This doesnt actually install the binaries yet, but it gets all the dependencies 
in place, so you can clone mirage/ocaml-crypto-keys and have it compile very 
easily, for a change!

Haris, I've got the DNSSEC-to-SSH converter working, but it looks you are 
currently resolving DS records directly into SSH public keys, right?  Should we 
also look for the SSHFP and use those in preference to DS, if specified?

-anil