Move Server.ContainerAttach to Daemon.ContainerAttach

This is part of an effort to break apart the legacy server package. Help wanted!

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com>
New job "log": logs a new event

DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com>
Move "pause" to daemon/pause.go

This is part of an effort to break apart the deprecated server/ package

DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com>