fix Sphinx version for Jenkins and update nG versioning (#1640)

* 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

contrib/docker/Dockerfile.ngraph.centos74

@@ -30,7 +30,7 @@ RUN yum -y update && \
     cmake3 make \
     git \
     wget patch diffutils zlib-devel ncurses-devel libtinfo-dev \
-    python python-devel python-setuptools \
+    python python-devel python3-sphinx python-setuptools \
     doxygen graphviz \
     which \
     'perl(Data::Dumper)'

contrib/docker/Dockerfile.ngraph.ubuntu1604

@@ -24,7 +24,7 @@ RUN apt-get update && apt-get install -y \
         git \
         wget patch diffutils zlib1g-dev libtinfo-dev \
         doxygen graphviz \
-        python-pip
+        python-pip python3-pip
 
 RUN apt-get clean autoclean && \
     apt-get autoremove -y
@@ -35,7 +35,7 @@ RUN pip install --upgrade pip
 # added install for python-pip above and
 # installed sphinx with pip to get the updated version 1.6.5
 # allows for make html build under the doc/source directory as an interim build process
-RUN pip install sphinx
+RUN pip install sphinx==1.7.5
 RUN pip install breathe
 
 # need numpy to successfully build docs for python_api

doc/sphinx/source/conf.py

@@ -28,7 +28,7 @@ sys.path.insert(0, os.path.abspath('../../../python'))
 
 # If your documentation needs a minimal Sphinx version, state it here.
 #
-needs_sphinx = '1.6.5'
+needs_sphinx = '1.7.5'
 
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
@@ -37,7 +37,6 @@ extensions = [
     'sphinx.ext.autodoc',
     'sphinx.ext.autosummary',
     'sphinx.ext.mathjax',
-#   'sphinx.ext.numpy',
     'sphinx.ext.ifconfig',
     'sphinx.ext.viewcode',
     'breathe',
@@ -69,9 +68,9 @@ author = 'Intel Corporation'
 # built documents.
 #
 # The short X.Y version.
-version = '0.7'
+version = '0.8'
 # The full version, including alpha/beta/rc tags.
-release = '0.7.1'
+release = '0.8.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.