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Doc: unified infershape format

Port Ubuntu to support python 3.5

* parallel run dist ci

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* update test=develop

 Fix warning of roi perspective transform op

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Avoid multiple definitions of lstm_compute_ctht when linking libpaddle_fluid.so

* "fix compile error"

* "fix ci"

* rerun ci
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* test=develop

rerun ci

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This reverts commit 21bb9e91, reversing
changes made to 3fa68dc1.

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update libpaddle_fluid.a/so

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Merge branch 'add_python3_to_ubuntu_dockerfile' of https://github.com/velconia/Paddle into add_python3_to_ubuntu_dockerfile

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hide all left over kwargs

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reduce inference ci time

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Disable one test in test_quantize_transpiler.

clean up channel

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disable this two unittests to accelerate Mac unit test

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Adding fused_embedding_fc_lstm op

fix random fail on test_api_impl

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* refine reduce by cub
* optimize KernelDepthwiseConvFilterGrad
* optimize depthwise conv and reduce mean and reduce sum
* fix bug: dilation
* cuda arch and cuda 8 compatible

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