That host header is et by the collector to localhost:17123

Some proxies will use that header upon CONNECT request and will make
the forwarder to repoint the trafic to the localhost (e.g. blue coat
proxies).
Fix bad syntax. Fix #1119
Merge tag '5.0.0'

5.0.0
Add a rake task to setup a dev environment for the agent
Update README.markdown
Use postgresql 9.3

Some tests are testing features only available on that version.
Merge branch 'master' into arthur/ssh-check
Adding SSH test cases
-tests for SSH connection