Misc edits to disable jobs hung on unresponsive nodes.

jjb/voltha-test/voltha-certification.yaml
jjb/voltha-test/voltha-certification/voltha-2.11.yaml
jjb/voltha-test/voltha-certification/voltha-2.12.yaml
jjb/voltha-test/voltha-certification/voltha-2.8.yaml
-----------------------------------------------------
  o Disable more menlo-certification jobs since cluster is offline.
  o Refactor altered 1600g jobs into configs named for branch/release.

requirements.txt
----------------
  o Added versioned urllib3 module so sphinx + python v3.6 will not barf.

Makefile
makefiles/lint/include.mk
makefiles/lint/doc8/include.mk
------------------------------
  o More updates from repo:onf-make, added library target lint-doc8.

makefiles/jjb/targets.mk
------------------------
  o build target - added a dependency on activate script so virtualenv
    will install on demand.  Worked by coincidence earlier, make lint
    also depends on venv.

jjb/voltha-e2e.yaml
-------------------
  o Purge lingering comments from joba-into-versioned-configs refactoring.
  o No fallout reported when configs were changed earlier.

Change-Id: I2571feb883a2049feb0781fc2464b875e3af325e
diff --git a/makefiles/lint/doc8/install.mk b/makefiles/lint/doc8/install.mk
new file mode 100644
index 0000000..0e62260
--- /dev/null
+++ b/makefiles/lint/doc8/install.mk
@@ -0,0 +1,65 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+## -----------------------------------------------------------------------
+## Intent: Install the doc8 tool
+## -----------------------------------------------------------------------
+.PHONY: lint-doc8-install
+
+## Define a macro to standardize and simplify access
+# DOC8 ?= $(venv-activate-bin)/doc8
+# DOC8 ?= $(activate) && doc8
+
+## -----------------------------------------------------------------------
+## Intent: Display doc8 command version string.
+##   Note: As a side effect, install doc8 by dependency
+## -----------------------------------------------------------------------
+.PHONY: lint-doc8-cmd-version
+lint-doc8-cmd-version : $(venv-activate-bin)/doc8
+
+	$(HIDE) echo
+	$< --version
+
+## -----------------------------------------------------------------------
+## Intent: On-demand instalation of the doc8 command
+## -----------------------------------------------------------------------
+lint-doc8-install := $(venv-activate-bin)/doc8
+$(lint-doc8-install) : $(venv-activate-script)
+
+	$(call banner-enter,Target $@)
+	$(activate) && pip install doc8
+	$(call banner-leave,Target $@)
+
+## -----------------------------------------------------------------------
+## Intent: Purge doc8 tool installation
+## -----------------------------------------------------------------------
+sterile ::
+	$(HIDE)$(RM) "$(venv-abs-bin)/doc8"
+# HIDE)$(RM) -r .venv/lib/*/site-packages/doc8
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+	@echo '  lint-doc8-install       Install the doc8 tool'
+
+# [EOF]