Make better default usage on context.Context on the `api/client` package
to share the context (it is useless if not shared, which was the case
for a lot of commands).
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
This patch creates a new cli package that allows to combine both client
and daemon commands (there is only one daemon command: docker daemon).
The `-d` and `--daemon` top-level flags are deprecated and a special
message is added to prompt the user to use `docker daemon`.
Providing top-level daemon-specific flags for client commands result
in an error message prompting the user to use `docker daemon`.
This patch does not break any old but correct usages.
This also makes `-d` and `--daemon` flags, as well as the `daemon`
command illegal in client-only binaries.
Signed-off-by: Tibor Vass <tibor@docker.com>
