Log Message:
Update ruby-faraday to 0.13.1.

0.13.1 (2017/8/18)

* Fixes an incompatibility with Addressable::URI being used as uri_parser

0.13.0 (2017/8/15)

* Dynamically reloads the proxy when performing a request on an absolute
  domain (#701)
* Prefer #hostname over #host. (#714)
* Adapter support for Net::HTTP::Persistent v3.0.0 (#619)
* Fixes an edge-case issue with response headers parsing (missing HTTP header)
  (#719)

0.12.2 (2017/07/21)

* Parse headers from aggregated proxy requests/responses (#681)
* Guard against invalid middleware configuration with warning (#685)
* Do not use :insecure option by default in Patron (#691)
* Fixes an issue with HTTPClient not raising a Faraday::ConnectionFailed
  (#702)
* Fixes YAML serialization/deserialization for Faraday::Utils::Headers (#690)
* Fixes an issue with Options having a nil value (#694)
* Fixes an issue with Faraday.default_connection not using
  Faraday.default_connection_options (#698)
* Fixes an issue with Options.merge! and Faraday instrumentation middleware
  (#710)