This patch updates all the roles to the latest available stable
SHA's, copies the release notes from the updated roles into the
integrated repo, updates all the OpenStack Service SHA's, and
updates the appropriate python requirements pins.
Depends-On: I99f6724aae0fd27b68f96014d97d2ba2b5fe14fd
Change-Id: Iafb3c681233c5fc7114c59a817260c0f038fe3b6