Make container id a required parameter for all runc(client) operations

[mikebrow]

Per the face to face discussions we decided to make --id, or similar parameter, required for all of the runc operations.

I'll generate a PR to update the runtime.md docs to specify the need for the container id for each of the runc operations. In particular, update the lifecyle description.

[wking]

On Thu, Jan 21, 2016 at 03:49:15PM -0800, Mike Brown wrote:

I'll generate a PR to update the runtimemd docs to specify the need
for the container id for each of the runc operations In particular,
update the lifecyle description

It's not my favorite approach [1,2,3], but as of 6f2665a it looks like
this is already done in #225.

 Subject: Re: removal of /run/opencontainer/containers, add --state?
 Date: Tue, 8 Dec 2015 15:49:57 -0800
 Message-ID: <20151208234957.GK2767@odin.tremily.us>

[mikebrow]

Ah I see.. been ill for a bit just getting back into it. Thx Trevor will close.

[duglin]

I think a PR for runc is still needed though and we should just make it a normal arg, not a flag.
ie. runc <action> <id> ...