--- features: - Adds a new config options, ``proxy_url``. This options is used to configure running tempest through a proxy server. - The RestClient class in tempest.lib.rest_client has a new kwarg parameters, ``proxy_url``, that is used to set a proxy server. - A new class was added to tempest.lib.http, ClosingProxyHttp. This behaves identically to ClosingHttp except that it requires a proxy url and will establish a connection through a proxy