Merge pull request #1395 from mtbc/insight-tidyup

minor Insight code cleanup
Modify empty/null namespace check as suggested by Jean-Marie
merge dev_4_4 -D org -I include -E exclude: PR 988 (webgallery prototype from github/will-moore/webgallery)
merge dev_4_4 -D org -I include -E exclude: PR 1126 (Fix long-missing DELETE EventLogs)
merge dev_4_4 -D org -I include -E exclude: PR 1249 (Dataset creation 11048)
merge dev_4_4 -D org -I include -E exclude: PR 1321 (Insight connectors dev 4 4)
merge dev_4_4 -D org -I include -E exclude: PR 1397 (Expose file annotation namespace in the clients)
merge dev_4_4 -D org -I include -E exclude: PR 1398 (Clickable links in descriptions and comments)
merge dev_4_4 -D org -I include -E exclude: PR 1403 (Remove ERROR log on non-CloseableServant (Fix #11378) (rebased onto dev_4_4))
merge dev_4_4 -D org -I include -E exclude

Repository: openmicroscopy/openmicroscopy
Already up-to-date.
Merged PRs:
  # PR 988 will-moore 'webgallery prototype from github/will-moore/webgallery'
  # PR 1126 joshmoore 'Fix long-missing DELETE EventLogs'
  # PR 1249 will-moore 'Dataset creation 11048'
  # PR 1321 jburel 'Insight connectors dev 4 4'
  # PR 1397 sbesson 'Expose file annotation namespace in the clients'
  # PR 1398 knabar 'Clickable links in descriptions and comments'
  # PR 1403 joshmoore 'Remove ERROR log on non-CloseableServant (Fix #11378) (rebased onto dev_4_4)'

Repository: openmicroscopy/bioformats
Updating 089d5ab..48d7675
Merged PRs:
  # PR 622 ctrueden 'Upgrade SLF4J to 1.7.2 [dev_4_4]'

Repository: ome/scripts
Updating d5ea9cd..36f7f79

Repository: openmicroscopy/ome-documentation
Updating ec67b3d..3aa9416
Merged PRs:
  # PR 368 rleigh-dundee 'Cpp: Correct content and markup'
  # PR 446 bpindelski 'Fix doc links to removed client component (see #11390)'

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