docs/articles/https

This is an initial attempt to make it easier to test the examples in the https.md
doc

at this point, it has to be a manual thing, and I've been running it in boot2docker

so my process is

$ boot2docker ssh
$$ git clone https://github.com/docker/docker
$$ cd docker/docs/articles/https
$$ make cert
lots of things to see and manually answer, as openssl wants to be interactive
**NOTE:** make sure you enter the hostname (`boot2docker` in my case) when prompted for `Computer Name`)
$$ sudo make run

start another terminal

$ boot2docker ssh
$$ cd docker/docs/articles/https
$$ make client

the last will connect first with `--tls` and then with `--tlsverify`

both should succeed