openstack/nova - nova - OpenDev: Free Software Needs Free Tools

html_last_updated_fmt option is interpreted as a
byte string in python3, causing Sphinx build to break.
This patch makes it utf-8 string.
Changing Popen to .check_output because of 3 reasons:
1. check_output() will raise CalledProcessError if
the called process returns a non-zero return code.
2. For consistency with keystone [1] and cinder [2]
3. It makes the code look much better.
[1] https://review.openstack.org/#/c/457142/
[2] https://review.openstack.org/#/c/433081
Change-Id: Ia3e792c512da46c2b92d3ad9ec1657849d379052

trivialfix
Change-Id: I1294ecb5e85c9bf70a23992e92eeccfd35362551

This patch updates the configuration file by removing the redundant
lines.
Change-Id: I2811af505f87a9f47e55410d8d0178414a44fe5f

The openstackdocstheme includes a bug reference link, which defaults
to openstack manuals. We want to update this to be a Nova bug instead.
This also cleans up the pre openstackdocstheme support code
Change-Id: Iace4619c37b04b1504a7051e9e5274b2a3b77c24

We need some magic to keep the build working as we move away from
oslosphinx and towards openstackdocstheme, the theme we are going to
use for all the docs.
For more details see:
http://lists.openstack.org/pipermail/openstack-dev/2016-August/101996.html
Change-Id: I378b1afade4725758c024e06b239b0af64d1b19a

On Ubuntu 16.04 a tox package is for python3 by default
and this causes errors in building docs in tox enviroment.
In these changes iterators are replaced with lists where it's needed.
Also external command calls result are decoded from bytes to unicode.
Change-Id: I88ef54405b4bc13c269bdda55ae8289676311ee1

os-api-ref is released on pypi now, so we can move to using it instead
of our in tree version. All future extension fixes will happen over
there instead of here.
Change-Id: Iee4b9c94b8b66a5b0481dd0b15beda03328c4f31
Depends-On: I0e615d36a2e5a8fa0d83f20bdcc2c33ad868ebd5

When building packages if git is absent, then we should not set
html_last_updated_fmt. It can still be set via the -D switch
when building with sphinx-build.
Change-Id: I5da86b7a163c0e795cd34abf79b0980a8552f79b
Closes-Bug: #1552251 

This creates a stub for landing content to support having the source
for the api-ref site in our source tree. It includes a new sphinx
extension that will be used to generate the html needed for the site
which supports 2 new stanzas:
 .. rest_parameters::
This uses a parameters yaml file to look up the definitions of
parameters and produce a structured table of those parameters and how
they are used.
 .. rest_method::
This is a stanza used inside a section which specifies the REST method
(i.e. GET /servers/{id}) which is then used to produce a nice
collapsable section.
This uses quite a bit of the sphinx extension API, and tries to
document any non obvious actions.
This extension needs additional styling from bootstrap, and some
custom js / css to do the theming / collapsing. That's included as
part of this.
Change-Id: I41b568b782d3c85f6ef8d3bb3a6f4ae378e4dc33