memcached_servers parameter parse error ,should be a list

[Yaguang Tang]

499 def _conf_get(self, name):
 500 # try config from paste-deploy first
 501 if name in self.conf:
 502 return self.conf[name]
 503 else:
 504 return CONF.keystone_authtoken[name]

options get from paste-deploy need to be a list for memcached_servers

    Usage summary
    =============

    This should give you a feel for how this module operates::

        import memcache
        mc = memcache.Client(['127.0.0.1:11211'], debug=0)

[Morgan Fainberg (mdrnstm)]

This should be fixed as memcached_servers is a list opt now in both keystonelcient and keystonemiddleware. There is also (when using newest versions of oslo.config) validation that will ensure the types of the options in paste-ini are correct option types.