Update git submodules

* Update puppet-askbot from branch 'master'
  - Be more forgiving in module deps list
    
    As time has moved on we've updated module versions making the pins in
    this module's metadata.json inaccurate. Relax the rules so that we can
    continue to update global module versions as necessary without raising
    warnings.
    
    Change-Id: Iaac15934b31a427370608ba439937f73ad5f64c7
    
  - Fix template variable
    
    I forgot that on puppet 3, scope.lookupvar returns :undef instead of nil
    when it looks up a variable set to 'undef'. Since we're not setting the
    chain file in our beaker tests, this causes an invalid apache config to
    be rendered. This patch ensures the file explicitly checks for both nil
    and :undef. On puppet 4, checking for just nil will be sufficient.
    
    Change-Id: I7fd806c65f1aef95618a4549b24c6fa21aa3fe29
    
  - Merge "Use earlier six release"
  - Merge "Don't run syncdb or migrate until after install"
  - Merge "Restart apache and celeryd on upgrade"
  - Merge "Use pip instead of setup.py when installing Askbot"
  - Merge "Pin stopforumspam"
  - Merge "Ensure more correct ordering"
  - Merge "Don't require virtualenv package"
  - Merge "Add systemd support"
  - Merge "Pin captcha version"
  - Merge "Update settings"
  - Merge "Remove old apache logs"
  - Update Gemfile for Zuulv3
    
    The logic in the Gemfile was relying on Zuulv2 variables to find out
    whether the spec helper gem was already available on disk, and since
    Zuulv3 has changed things it was failing to find it and downloading the
    master version instead. This patch ensures the Gemfile looks for the gem
    in the right place when running in CI.
    
    Change-Id: Ib5f25bad8e5be39530113bf19ea2951cc9344961
    
  - Merge "Fix scope of vhost template variables"
  - Use earlier six release
    
    As described, the code is incompatible with the latest six.  Pin this
    till we can update the underlying django, etc.
    
    Change-Id: Ic13b80ba53331f5375cbb35ddf86880313415332
    
  - Pin stopforumspam
    
    Later versions of this became incompatible with the django used with
    askbot.  Pin it.
    
    Change-Id: Ic409a368d31728428f215db89a0c605967fe5cbf
    
  - Ensure more correct ordering
    
    There were a few parts of this that could get out of order; ensure
    more correct ordering.
    
    Change-Id: Ic010bb70915d37ce55e9f5531a2c5baa15808595
    
  - Don't require virtualenv package
    
    Use puppet-python's checks to ensure presence of python packages.
    This way we don't create conflicting Package['virtualenv'] entries.
    
    Change-Id: I3435a2527f4712d068c5a3c43728bed6011e1ebd
    
  - Add systemd support
    
    This adds a basic service file for celeryd and associated bits to
    install it on Xenial and beyond.
    
    Change-Id: I58ab956832acabf9e5af5f815e37ed1eb365a649
    
  - Pin captcha version
    
    Pin to the version currently deployed in production while we work
    through Xenial upgrade.  We can unpin when we try to update the askbot
    version.
    
    Change-Id: I991c503f9f4a7e01be7ee58ba496f8c4f671c1a1
    
  - Update settings
    
    The askbot production settings are deployed from system-config, and
    this version has become out of sync with what's actually required to
    start-up askbot.  Update it.
    
    Change-Id: I66da411a8c000d2be5e0676d536441b5f03bfdd2
    
  - Remove old apache logs
    
    Just keep one month worth
    
    Change-Id: I69903d494d117ff0c8e1ac48dadc8d1619e724b6
    
  - Add clean_session.log for rotation
    
    This file is growing unbounded; let's rotate it
    
     root@ask:/srv/askbot-site/log# ls -lh
     -rw-r--r-- 1 root root     1.7G Apr  5 01:10 clean_session.log
    
    Change-Id: I051cd5868591bae021b61ab68f91ad9af16d6896
    
  - Fix scope of vhost template variables
    
    Dynamic scoping for variables in ERB templates was removed in puppet
    4[1] which means that the variables defined in the the manifests cannot
    be found when it is referenced in the httpd::vhost defined type and will
    be evaluated as nil when puppet runs. Use scope.lookupvar instead to be
    explicit about the variable's source.
    
    [1] https://puppet.com/docs/puppet/4.10/lang_updating_manifests.html#dynamic-scoping-in-erb
    
    Change-Id: I344be46a2e69d0eadda9148e1b7dd1f73c7a1edd
    
  - Don't run syncdb or migrate until after install
    
    The syncdb and migrate execs need an upgraded Askbot package
    installed in the venv before they're run, so indicate this
    dependency relationship accordingly.
    
    Change-Id: Ibf191682e238fcf5dcebc5a5c2c50d8b63913153
    
  - Restart apache and celeryd on upgrade
    
    When upgrading, after the migrate exec completes, notify the apache2
    and askbot-celeryd services so they will be restarted.
    
    Change-Id: I0a7f3987d782c52e85aa2f87186d2beb367d5b6b
    
  - Use pip instead of setup.py when installing Askbot
    
    Calling python setup.py install seems to not properly uninstall the
    old version of Askbot, but using pip install upgrades correctly and
    is more in line with our usual pattern in other modules.
    
    Change-Id: Iec6aef76a2ddf155dba26f37cefa94439c47e829

puppet-askbot

@@ -1 +1 @@
-Subproject commit 7abbdafc622114e009d0ad70f8efae1a4c8c8ae2
+Subproject commit 0356069e082c48fe3f1af3a121b328ab543067c7