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

[D. Hugh Redelmeier]

New commits:
commit 122bf965ba9059f7ec11d650e7ab00e43d03f63d
Author: D. Hugh Redelmeier <hugh at mimosa.com>
Date:   Sat Apr 30 14:02:35 2016 -0400

    pluto: exploit C's expressive power