[ovs-git] [openvswitch/ovs] aa0742: travis: Install six Python library.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/openvswitch/ovs
  Commit: aa07423103f0593e040240313f94e89ad43e674c
      https://github.com/openvswitch/ovs/commit/aa07423103f0593e040240313f94e89ad43e674c
  Author: Russell Bryant <russell at ovn.org>
  Date:   2016-01-21 (Thu, 21 Jan 2016)

  Changed paths:
    M .travis/prepare.sh

  Log Message:
  -----------
  travis: Install six Python library.

The travis-ci build is broken because the Python six library is not
installed.

Signed-off-by: Russell Bryant <russell at ovn.org>
Tested-by: Joe Stringer <joe at ovn.org>
Acked-by: Joe Stringer <joe at ovn.org>