* update sphinx reqs

* update sphinx reqs

* add stub files for quant dequant

* quantize / dequantize doc

* Small doxygen fixes

* Update quantize.rst

* quant docs

* initial rough draft

* import changes md to release notes for readability

* import changes md to release notes for readability

* remove draft

* update README with link to Release Notes

* release notes link

* fix graphic placement

* Wording change on ONNX supported frameworks

* More op doc, fix formatting

* sqrt, tan

* Formatting.

* address klocwork issue

* move class init

* more klocwork

* more klocwork

* more klocwork

* comment on where the magic number is from

* address review comments

* address review comments

* add doctools js from basic theme sphinx repo

* fixes from PR 672 RTD theme regarding sphinx build

* Sigmoid and tanh  doc, edit for abs

* Add equation for sigmoid.

* rename files

* rename runtime TensorView to Tensor

* rename HostTensorView to HostTensor

* remove get_tensor method

* remove get_element_count as it is redundant to get_size

* fix a few issues with examples and python wrapper

* rename get_size to get_element_count and add get_size_in_bytes method

* add DropOut op and stub to Documentation ToC

* cleanup stub for dropout and add template for op additions

* add checklist as helper for op_stub

* fix Sphinx version for Jenkins and update nG versioning

* Try stable verison of Sphinx 1.7 instead

* postpone adding dropout op to make CI building happy

* refactor distributed code

* add test file changes

* add distributed class

* update test file

* Update fusion doc and add ONNX build flag to buildlb doc

* Fix PR comments

* Final PR review comments addreswsed

* Fix link on reformmatted doc README

* Delete index.rst.save

* Update doc build v and fix doc on captioning

* Clarify to build the library

* update link on README

* use line comments instead of multiline comments for license header

* update more

* update new files

* more header updates

* style

that doc build and all extensions work on 4k debian variants

* onnx: pull Protobuf 3.5.x from GitHub
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: fix Travis build configuration issue
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: additional fixes for Travis
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: update documentation - build requirements for MacOS
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* onnx: update documentation - build requirements for Ubuntu
Signed-off-by: Artur Wojcik <artur.wojcik@intel.com>

* Clarify ng backends as devices

* revise some intros and add menu link

* Re-align docs with code example for mnist

* Also fix dist_mnist and add context highlight

* update frameworkdocs

* revise docs with new MXNet bridge code instructions

* revise docs with new MXNet bridge code instructions

* remove broken merge conflict

* update frameworkdocs

* revise docs with new MXNet bridge code instructions

* revise docs with new MXNet bridge code instructions

* editing how to execute computation file for clarity and linenos

* Add placeholder for runtime docs

* Update section on backends, interpreter, and FPGA options

* add updated master to fix python_ci

* Weird autosummary issue reverted

* Clarify new section

* fix up docs

* Update pattern matcher doc based on Nik's presentation slides WIP

* Update doc structure and examples

* remove old folder

* Fix broken Tensorview refs

* new section on distr training

* updated index w/drafted outline

* . helping people document code more efficiently

* edit WIP branch

* WIP editing

* WIP editing

* init distributed doc

* PR review edits

* modify dist doc and dist mnist_mlp

* Finish PR review comment fixes so far

* Improving distributed training docs

* Fix build error now that we have documented inteface backends use

* update example build and run

* update how-to distributed training doc

* Editing distr train docs

* Reword section to avoid strange doc build error

* rebuild for zero errors for CI

* split patternmatcher PR

* PR feedback added

* Add more help and detail for MXNet and neon distr

* Resolve merge conflicts due to patternmatcher doc split

* Resolve merge conflicts due to patternmatcher doc split

* Resolve build errors manually

* These files are already added to the branch

* fix style

* update with glossary def and link to Intel paper on synchronous SGD

* fix link to sgd

* remove comm_rank in dist example

* update version and add glossary defs

* clean up graph rewrite code blocks

* PR feedback

* add better details to LSTM def

* RNN def generalized

* adding fancy formulas to RNN def glossary entry

* Address API breaking change in PR 1164

* all of the documentation re default install path needed updated with pr 1164

* Assert manual compilation process to build ngraph_dist locally as a sensible default

* Draft of updates for JIRA tasks WIP

* meta to correct spelling

* Draft of updates for JIRA tasks WIP

* correct typo

* more cleanup

* more cleanup

* Fix short markup

* Minor adjustments, license requirements.

* declare sigmoid for core fusion

* add simple test for sigmoid

* info fusion status

* cp op as main op

* builds as expected

* move sigmoid fusion code

* add reference kernel

* sigmoid bprop reference kernel and clang-format

* add delta to bprop

* fprop called

* compiles bprop

* move tests

* serializer support

* address comments in code

* add doc

* naming similar to core ops

* fix failing test

* fix failing test

* address clang issue

* more changes

* change test macro

* editing how to execute computation file for clarity and linenos

* Add placeholder for runtime docs

* Update section on backends, interpreter, and FPGA options

* add updated master to fix python_ci

* Weird autosummary issue reverted

* Clarify new section

* fix up docs

* Update pattern matcher doc based on Nik's presentation slides WIP

* Update doc structure and examples

* remove old folder

* Fix broken Tensorview refs

* . helping people document code more efficiently

* PR review edits

* Finish PR review comment fixes so far

* split patternmatcher PR

* small fixes to PM docs

* remove mark tags from source code

* Final PR cleanup edits

* [doc] Fix code snippet in derive-for-training

* Fix another code snippet in derive-for-training

* Update cmake files to more modern approach

* disable building libraries that are not required

* handle more build cases

* add versions to backend libs. add start of package target.

* add create_backend to backends

* temporary workaround to tbb not linking correctly with gcc

* install codegen lib

* force tbb to link to the cpu backend so that it is available for codegen

* fix clang build error

* fix warning for codegen build

* update cuda header paths

* change error message for opening backend shared library

* set lib path