Add a plugin for determining disk usage.
Remove two unused imports and fix comment.
Output file count; use KiB, etc,; add minimal option.
Fix a few issues from the initial review.
Support show=image-1|image-2
New OmeroWeb/test for show=project-1|project-2
Fix flake8 errors
Unrecognised Americanised.
Add login arguments.
Fix flake8 errors
Adding testResetDefaults() to gatewaytest/test_rdefs.py
merge develop -Dorg -Ssuccess-only: PR 2835 (Update OmeroPy/src/path.py)
merge develop -Dorg -Ssuccess-only: PR 2895 (Reload groups after users added/removed)
merge develop -Dorg -Ssuccess-only: PR 2902 (OmeroPy: src flake8 (I))
merge develop -Dorg -Ssuccess-only: PR 2907 (Preview panel like insight)
merge develop -Dorg -Ssuccess-only: PR 2912 (Java8)
merge develop -Dorg -Ssuccess-only: PR 2919 (fix #7240: provide disk usage count)
merge develop -Dorg -Ssuccess-only: PR 2926 (OmeroCpp: Glob test sources)
merge develop -Dorg -Ssuccess-only: PR 2927 (OmeroCpp: Glob example sources)
merge develop -Dorg -Ssuccess-only: PR 2941 (Qa submit)