[Swan-commit] Changes to ref refs/heads/master

[Andrew Cagney]

New commits:
commit f96638b1ff8858575da16078be01465c393e9812
Author: Andrew Cagney <cagney at gnu.org>
Date:   Tue Feb 13 10:37:43 2018 -0500

    ikev2: add optional support for DH31 aka CURVE25519
    
    Enable with:
       make USE_DH31=true