gzip example not working

[Chris Passas]

@javierprovecho
@manucorporat

I've tried using the exact example provided for gzip and found it does not work as intended.

This appears to be related to issue #35

Example in question: https://github.com/gin-gonic/contrib/blob/master/gzip/example/example.go

I get the following output:

curl -v -H "Accept-Encoding: gzip" 'http://localhost:8080/ping'

• Trying ::1...
• Connected to localhost (::1) port 8080 (#0)
  GET /ping HTTP/1.1
  Host: localhost:8080
  User-Agent: curl/7.43.0
  Accept: /
  Accept-Encoding: gzip

< HTTP/1.1 200 OK
< Content-Encoding: gzip
< Content-Type: text/plain; charset=utf-8
< Vary: Accept-Encoding
< Date: Mon, 18 Jul 2016 17:20:56 GMT
< Content-Length: 38
<

• Connection #0 to host localhost left intact
  pong 1468862456?n????

I'm not yet sure how to fix this. I assume the example code needs an update.

Thank you

[Chris Passas]

I found that issue #59 fixeds this. We just need the pull request for #59 to be accepted.