Merge pull request #950 from rleigh-dundee/install-ice

Installation: Specify what to do for N/A in package lists
adjust suggestions / recommendations for security support

also reformat file markup
suggested by @rleigh-dundee
remove ambiguous adjective
merge develop -Dorg -Ssuccess-only: PR 953 (tweak server docs (rebased from dev_5_0))
merge develop -Dorg -Ssuccess-only

Repository: openmicroscopy/ome-documentation
Updating 889b4f3..aba2451
Previously merged:
  # PR 950 rleigh-dundee 'Installation: Specify what to do for N/A in package lists'

Merged PRs:
  # PR 953 mtbc 'tweak server docs (rebased from dev_5_0)'

Generated by OME-5.1-merge-push#409 (http://ci.openmicroscopy.org/job/OME-5.1-merge-push/409/)