FindIce: Find slice files on FreeBSD
cmake: Update Ice capitalisation to match FindIce
merge develop -Dorg -Ssuccess-only: PR 2435 (cpp: RTypesI: use static locals in place of duplicated globals)
merge develop -Dorg -Ssuccess-only: PR 2835 (Update OmeroPy/src/path.py)
merge develop -Dorg -Ssuccess-only: PR 2884 (fix #10766: add API method for changing original files' hasher)
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 2905 (Renderings settings )
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 2916 (Add 2008ServerR2 support to DropBox (rebased onto develop))
merge develop -Dorg -Ssuccess-only: PR 2918 (Fix createMask.m)
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 2936 (Viewer on tablets)
merge develop -Dorg -Ssuccess-only: PR 2939 (Jdk1.8)
merge develop -Dorg -Ssuccess-only: PR 2941 (Qa submit)
merge develop -Dorg -Ssuccess-only: PR 2945 (Add a plugin for determining disk usage.)
merge develop -Dorg -Ssuccess-only: PR 2946 (Prev next web viewer)