merge dev_5_0 -Dorg -Ssuccess-only

Repository: openmicroscopy/ome-documentation
Updating 6dd7ecb..ff78db9
Previously merged:
  # PR 1033 hflynn 'Fixing use of :option: for new sphinx (dev_5_0)'
  # PR 1029 aleksandra-tarkowska 'csrf protection'
  # PR 1030 hflynn 'Updating build no. for linux walkthrough'
  # PR 1028 snoopycrimecop 'Update auto-generated properties'
  # PR 1026 hflynn 'Adding note about openjdk8 not being supported'

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