Use official OpenStack Yoga upper constraints
As they remove sphinx from the list, we can switch to the
official files. etc/upper-constraints.os.txt will be
removed once all ONAP part of doc's conf.py are updated.
It also fixes master's and releases's tox.ini and modifies
conf.py to make spellcheck work.
It syncs release/_static/css/ribbon.css which was obsolete.
Issue-ID: DOC-782
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
Change-Id: I22757e2d6750e88ac7e83a0636fc0755976a2cbd
10 files changed