* Add HasCUDNN to detect if CUDNN is installed or not

* Fix CI

add MKLDNN LRN

Compile cblas library as static

Make ConvTransProjection support for dilation

fix typo and path issue in build from source doc

Enhance AvgPooling to support both include_mode and exclude_mode

* write versino.py

* add version py

* clean init py

* add istaged, major and etc... fields

* update

* update

* update

Change the type of conv2d in Python API.

Add LRN efficient GPU implement

Add half precision float16 data type

* init nmt

* encoder ready

* only generation implementation

waiting for dynamic rnn ready to train

* init python

* remove decoder temporary

* clean

* clean

Fix nce op warning about comparison of integers of different signs

fix int overflow

Refine code（operator++）

* 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

This pull request adds "Build using Docker" documentation to the "Getting Started > Install and Build" menu on PaddlePaddle.org

* Using latex fraction syntax in sigmoid and logsigmoid op

* Fixing the rendering of the latex equations in adamax operator

* add crf_decoding layer

* fix some typo

* init trunk_evaluator

* add trunk_evaluator layer

* update chunk_eval_op and test, change int32 to int64

* fix a numeric problem

* change layers.trunk_evaluator to layers.trunk_eval

* fix typo

* add precision_val

Remove the CUDA stream synchronization between each operator.

* "add init seed"

* "fix compile error"

* "add program level seed setting"

* "fixed based on comments"