includes.h to pull in all of the compatibility stuff.

     [blocks.c ed25519.c fe25519.c fe25519.h ge25519.c ge25519.h]
     [ge25519_base.data hash.c sc25519.c sc25519.h verify.c]
     Add Authors for the public domain ed25519/nacl code.
     see also http://nacl.cr.yp.to/features.html
        All of the NaCl software is in the public domain.
     and http://ed25519.cr.yp.to/software.html
        The Ed25519 software is in the public domain.

   [ge25519_base.data hash.c sc25519.c sc25519.h verify.c] Fix RCS idents

     [authfd.c authfile.c key.c key.h myproposal.h pathnames.h readconf.c]
     [servconf.c ssh-agent.c ssh-keygen.c ssh-keyscan.1 ssh-keyscan.c]
     [ssh-keysign.c ssh.c ssh_config.5 sshd.8 sshd.c verify.c ssh-ed25519.c]
     [sc25519.h sc25519.c hash.c ge25519_base.data ge25519.h ge25519.c]
     [fe25519.h fe25519.c ed25519.c crypto_api.h blocks.c]
     support ed25519 keys (hostkeys and user identities) using the public
     domain ed25519 reference code from SUPERCOP, see
     http://ed25519.cr.yp.to/software.html
     feedback, help & ok djm@