Add alex as devmapper and btrfs maintainer
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Move Attach from container to daemon

This moves the Attach method from the container to the daemon.  This
method mostly supports the http attach logic and does not have anything
to do with the running of a container.
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Merge pull request #5614 from crosbymichael/move-attach-to-daemon

Move Attach from container to daemon
Merge pull request #5601 from crosbymichael/alex-maintainer

Add alex as devmapper and btrfs maintainer
Add alex as devmapper and btrfs maintainer
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
add linked containers to hosts file

Docker-DCO-1.1-Signed-off-by: Bryan Murphy <bmurphy1976@gmail.com> (github: bmurphy1976)

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
Tested-by: Solomon Hykes <solomon@docker.com> (github: shykes)
Simplify integration test for link + hostname.

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
Merge pull request #5056 by Bryan Murphy <bmurphy1976@gmail.com>

"add linked containers to hosts file"