* Update the version number
Update the doc to include Vue
Update the doc to give more details on the sync_cycle
Update the doc to include python 3

* Update the LogWriter constructor doc.

* Update the package copy directory.

* Update the version to 0.0.2 (implying beta now)

* Update the vdl_create_scratch_log to python 3 as well.

Let's reduce the complexity of the documentation for now. and maybe split the #define function in the future.

* Only write the modified tablets to file system.
Move some functions definitions from headers to cc files.

* Persist the data in the destructor
Use unordered_set first.

* Use -1 for the unknown.

* Add the support to write documentation in the pybind directly.

* Provide more detail of the API documentations.

* Add Python 3 support

* Update protobuf to 3.5 and pybind to 2.2.2

* Update test scripts to use python -m

* Change zip/xrange/import usages

* Remove file generated by

* Graph viz set up (#282)

* Include the Graph requirement, GraphViz` in docs.

* Provide information to the ONNX format model export.

* Ask the user to download Graphviz via the website instead of brew.

* Make test and build scripts compatible with python 2 & 3

* A WITH_PYTHON3 option was added to cmake.

* setup.py will detect runing version python, and setup up WITH_PYTHON3 environemnt variable before calling build.sh

* build.sh and test.sh will handle WITH_PYTHON3

* Fix pybind warning

* Pass WITH_PYTHON3 correctly

* Fix coding style

* Add six for Python 2 and 3 Compatibility

* Fix coding style

* Binary Record Fixes

* Fixed issues with binary_record.h filename generator method.  std::hash is not consistent across OS.  It will generate different hash's when ran on different OS on the same string.  Change the filename generator to use a static counter.  It will be more ideal to use UUID generator available in boost 1.4.2, however, boost 1.4.2 has problems compiling on c++11 \n* Fix issue with pytorch demo where it logs to the absolute path /workspace

* Fix performance issue on server when server fails to load image file.  Currently server retries an API call 3 times before it fails, at which point it'll sleep the thread for 2 secs.  This becomes problematic when there are alot of SDK errors.  I'll create seperate issue to refine the retry logic to not be so expensive on the server.

VDL is set to retry an pybinded API call multiple times in case the call fails the first time.  The issue is the method lib.retry will sleep the thread for 2 seconds after an exception.  Since VDL was not running in threaded mode, this causes all request to the server to stop immediately, therefore even requests to get static resource are frozen.  This change enables threaded mode in flask. (#249)

* Add C++ and python style check to travis.  
* Update all C++/python code that violate coding standards.

Fix some typos

* support manylinux build

* fix

* fix lib

* simplify image sample usage

* simplify image

* add scratch demo

* add scipy into dependency

* add demo

* update readme

* add better scratch demo

* add more data

* support mannul image

* init comment for sdk

* update comment

* init paddle

* add image writer

* change sample numble to 4

* add image and conv image

* add histogram

* rename test file

based on graphviz