* by default, synchronize default_stream after resizeAndCopyFrom
* add sync in some places after resizeAndCopyFrom using other streams

Lazy install Paddle wheels

Fix a PyDataProvider2 bug when use calc_batch_size

* Need PyGuard when set args for calc_batch_size

Change-Id: I2a72eb0a296a8cf297e2a53029d2602d85f40296

* Replace DataProviderWrapperConverter with DataProviderConverter in all
demo prediction scripts.

* Minor refinement of swig_py_paddle.rst to keep consistency with the
English version.

Fix bug in NO_AVX when using lstm

* libpaddle_cuda add wrong -mavx to some cpp files.

* install wheels when invoke paddle script if current python don't
  have paddle packages, or installed a previous version.
* Also add `make install` to travis

Merge Baidu Changes into github

Change-Id: I028e402c964ca4f4431cbf8153bea4379dd4df70

Change-Id: Ia84860cdc25945ececba84fc9807495c9e5f047b

DataProviderWrapperConverter with DataProviderConverter.

Change-Id: Ibc39ca1d1a27d0d28569e29f41a5647659f8c764

The reference return type causes ThreadParameterUpdater.cpp:123 seg fault under gcc5.4.

Change-Id: I7a1c155892722076a7cb48793b83d5ee525747d1

Change-Id: I0b8608feab8f6be5094e8981fc5f65cb401ed415

Change-Id: I636cf13af5becb1168bc9749266b55580c46f6c9

* the last layer in the stack already has all the suffixes

Change-Id: Ia60c008a8c922f66e6b5e2ca3e488fc4625d6506

Add travis support to PaddlePaddle

* Add wheel into installation package.
* Improve quick start doc.

Change-Id: I0254e48fd90b874ed3163654b0fab607c0a4195d

* findLastSet function: size_t could be  uint, ulong, ulonglong
* add default cuda 7.0 in flags.cmake

Change-Id: Ica9d09520e6a1468e5fc97e2c29c1ea7c73dafbb

* Add wheel into installation package.
* Improve quick start doc.

Change-Id: I6151f0569fef8b73248ad9aa3452ef5f0c1bb900

Change-Id: I6ba3ec1daeb3d4aee2556959e87bae7c4c1ad668

Change-Id: Ie237127bb0f537998827ab29ffde2526c21c6dd1

* Fix ParameterAttribute for img_conv_layer, tensor_layer, crf_layer, crf_decoding_layer.

Change-Id: I88ed5b511fa34cacd8f2d4abf29cee52487fbf68

Change-Id: Ic42414e2e3a81bdce27f399e4944f6e9cb88da5c

Change-Id: Id0804d03fc15529a8cf0b13c9e97d628103f5cec

Change-Id: Ib7f7d3c65c9850b8420f9a4799835a7ea03572bd