Merge pull request #237 from JesseCorrington/cppDocFixes

cpp api doc fixes
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 224 (Training material)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken

Repository: openmicroscopy/ome-documentation
Updating d444e0b..50254df
Merged PRs:
  # PR 224 gusferguson 'Training material'

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