Add 2008ServerR2 to the supported list.
Remove sphinx.environment.BuildEnvironment and sphinx.util.relative_uri

This feature does not work for now
Fix docstrings of omero.callbacks
Fix omero __init__.py header
Fix docstrings in omero.gateway

Should remove all warnings when building the sphinx-api
Fix docstring of omero.install.versions
Fix docstring in omero.util.import_candidates
Fix docstring in omero.util.populate_roi
Fix docstring in omero.util
Update error string.
OmeroCpp: Add portability fixes for gtest

Some combinations of gtest and the C++ standard library result in
compile failure due to the objects being tested not having
stream output operators.  Change these assertions to avoid
stream output.
Update comment string.
Handle add Comment to search results not in current group
Handle add FileAnn to search results not in current group
Merge pull request #2900 from rleigh-dundee/cpp-gtest-fixes-dev50

OmeroCpp: Add portability fixes for gtest
Merge pull request #2899 from sbesson/sphinxapi_compilation

Fix warnings in Sphinx API generation
Merge pull request #2897 from ximenesuk/dropbox-add-2008r2

Add 2008ServerR2 support to DropBox
Merge pull request #2904 from will-moore/search_add_comment

Search add comment
Update dev_5_0 submodules

Repository: openmicroscopy/openmicroscopy
Already up-to-date.

Repository: openmicroscopy/bioformats
Updating db6d5c5..5f987c0
Merged PRs (fast-forward):
  # PR 1230 melissalinkert 'Update version numbers to 5.0.3'
  # PR 1231 melissalinkert 'Update version history for 5.0.3'
  # PR 1248 melissalinkert 'ND2: one more set of dimension parsing fixes'
  # PR 1246 joshmoore 'Improve LOGGER levels in Memoizer'

Repository: ome/scripts
Already up-to-date.

Repository: openmicroscopy/ome-documentation
Updating 8a94f48..c1fef5b
Merged PRs (fast-forward):
  # PR 924 bpindelski 'Add documentation of server foregrounding.'
  # PR 918 sbesson 'Update auto-generated properties'
  # PR 921 ximenesuk ' DropBox configuration clarification'
  # PR 917 ximenesuk 'Import documentation tweaks'

Generated by OMERO-5.0-latest-submods#467 (http://ci.openmicroscopy.org/job/OMERO-5.0-latest-submods/467/)
Merge pull request #2901 from snoopycrimecop/merge/dev_5_0/submodules

Update dev_5_0 submodules (for 5.0.3 release)