add ssl tests (this is just to test against the CI)

[little-dude]

I think I fixed the hang.
The tests still fail sometimes though.

[little-dude]

so locally (linux), I have a 10% failure rate but travis consistently fails one of the tests.

[seanmonstar]

So, I have a couple thoughts that may make it easier to get things passing:

1. I see the port 12345 specified in the test, but no where else. It seems like the port doesn't need to be specific, and so to prevent concerns with the port being busy in the next tests, it could be better to use a port of 0, and then after the listener is bound, grap the local addr to check what port is being used.
2. I actually wouldn't use a hyper server for this. It doesn't have the ability to shutdown (listening.close() is a lie).
3. Instead of panic!(e), try panic!("{:?}", e). The message should be better, hopefully.

[seanmonstar]

I'm going to close as in-active.