3.5.6   +) Added retry support for a relatively rare exception

                [Errno 104] Connection reset by peer

           see http://stackoverflow.com/a/20568874/2147244
           for explanation of the problem

        *) Fixed https://github.com/sealemar/BingRewards/pull/53#issuecomment-46684688
           In this change the escape method is determined automatically. Two are supported:
           'string-escape', 'unicode_escape'