https://github.com/esigate/esigate/issues/45 : proxy ticket generated for each request
https://github.com/esigate/esigate/issues/43 : code broken with multiple execution of outgoing request (CasAuthenticationHandler)
https://github.com/esigate/esigate/issues/45 : Proxy ticket generated every time in Driver.render mode
Merge pull request #46 from alexist/master

https://github.com/esigate/esigate/issues/45