“7045fad17e3a1bf5b47de97ae4fa8d880ccd3a0f”上不存在“develop/doc_cn/git@gitcode.net:Crayonxin2000/Paddle.git”
* Add DataFeeder A v2 API like data feeder for book demos. We can feed data directly from reader. * Fix CI * Add an unittest for while/rnn op forward * Add unittest for raw while op backward * Fix CI * Complete Dynamic RNN