Add GRU support for DS2 model.#214

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lcy-seso merged 4 commits intoPaddlePaddle:developfrom

xinghai-sun:network_structure

Sep 4, 2017

Commits on Aug 21, 2017

Commits on Sep 3, 2017

Fixed a bug of mixing forward and backward projection in bi-directional GRUs.
xinghai-sun
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Merge branch 'develop' into network_structure
xinghai-sun
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