coreos/manifest

Bug Fixes:

• Fix intermittent network issues in Docker containers. (#1554)
• Fix last login message in SSH sessions (#1557)
• Fix systemd user session startup (#1498)
• Support overriding the initrd's default DHCP network configuration with ip= kernel command line options (#981)
• EC2: Fix system console for HVM instances (coreos-overlay#2189)

Updates:

• coreos-cloudinit 1.12.0
• flannel 0.6.2
• Ignition 0.11.1
• Most Go applications are now built with 1.7.1