Merge branch 'develop' of https://github.com/PaddlePaddle/Paddle into dev_update_reader_doc

CMakeLists.txt

@@ -53,7 +53,7 @@ option(COVERALLS_UPLOAD "Package code coverage data to coveralls"       OFF)
 option(ON_TRAVIS        "Exclude special unit test on Travis CI"        OFF)
 option(WITH_C_API       "Compile PaddlePaddle with C-API(Prediction)"   OFF)
 # TODO: Only compile PaddlePaddle fluid version by WITH_FLUID option. 
-option(WITH_FLUID       "Compile PaddlePaddle fluid only(TODO)"         ON)
+option(WITH_FLUID       "Compile PaddlePaddle fluid only(TODO)"         OFF)
 option(WITH_GOLANG      "Compile PaddlePaddle with GOLANG"              OFF)
 option(GLIDE_INSTALL    "Download and install go dependencies "         ON)
 option(USE_NNPACK       "Compile PaddlePaddle with NNPACK library"      OFF)

Dockerfile

@@ -53,10 +53,14 @@ RUN localedef -i en_US -f UTF-8 en_US.UTF-8
 
 # FIXME: due to temporary ipykernel dependency issue, specify ipykernel jupyter
 # version util jupyter fixes this issue.
+
+# specify sphinx version as 1.5.6 and remove -U option for [pip install -U
+# sphinx-rtd-theme] since -U option will cause sphinx being updated to newest
+# version(1.7.1 for now), which causes building documentation failed.
 RUN pip install --upgrade pip && \
     pip install -U wheel && \
-    pip install -U docopt PyYAML sphinx && \
-    pip install -U sphinx-rtd-theme==0.1.9 recommonmark
+    pip install -U docopt PyYAML sphinx==1.5.6 && \
+    pip install sphinx-rtd-theme==0.1.9 recommonmark
 
 RUN pip install pre-commit 'ipython==5.3.0' && \
     pip install 'ipykernel==4.6.0' 'jupyter==1.0.0' && \

doc/design/speech/deep_speech_2.md → doc/fluid/design/network/deep_speech_2.md

@@ -94,7 +94,7 @@ The classical DS2 network contains 15 layers (from bottom to top):
 - **One** CTC-loss layer
 
 <div align="center">
-<img src="image/ds2_network.png" width=350><br/>
+<img src="images/ds2_network.png" width=350><br/>
 Figure 1. Archetecture of Deep Speech 2 Network.
 </div>
 
@@ -141,7 +141,7 @@ TODO by Assignees
 ### Beam Search with CTC and LM
 
 <div align="center">
-<img src="image/beam_search.png" width=600><br/>
+<img src="images/beam_search.png" width=600><br/>
 Figure 2. Algorithm for CTC Beam Search Decoder.
 </div>