Fix24 check host match

Fixes #24 - Add hostname matching for SSL, looks like this:

```
sake:elbping chooper$ bundle exec ./bin/elbping -c 1 https://www.heroku.com
Response from:  107.22.186.187: code=405 time=1096ms ssl cn=www.heroku.com match=true expires=2015-10-08 12:00:00 UTC
Response from:    23.23.227.87: code=405 time=1577ms ssl cn=www.heroku.com match=true expires=2015-10-08 12:00:00 UTC
Response from:   50.19.233.212: code=405 time=687ms ssl cn=www.heroku.com match=true expires=2015-10-08 12:00:00 UTC
--- 107.22.186.187 statistics ---
1 requests, 1 responses, 0% loss
min/avg/max = 1096/1096/1096 ms
--- 23.23.227.87 statistics ---
1 requests, 1 responses, 0% loss
min/avg/max = 1577/1577/1577 ms
--- 50.19.233.212 statistics ---
1 requests, 1 responses, 0% loss
min/avg/max = 687/687/687 ms
--- total statistics ---
3 requests, 3 responses, 0% loss, 3 nodes
min/avg/max = 687/1120/1577 ms
```

Output feels a little long, what do you think @mikehale?