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Since twitter updated its authentication mechanism
See:
https://mail-archives.apache.org/mod_mbox/incubator-s4-user/201308.mbox/%3CCAFcOpXd9iGr3m4p3RiTaqd%3DFy3kW7udo_4bw%3D8BUfs_0R4%2BSZA%40mail.gmail.com%3E