Merge pull request #1317 from jburel/proxy-network-checkup

Proxy network checkup
Merge pull request #1318 from jburel/submit-failure-dev_4_4

Submit failure dev 4 4
Merge pull request #1285 from joshmoore/rebased/dev_4_4/11033-system-threads

Provide SYSTEM priority thread executor for reload (See #11033) (rebased onto dev_4_4)
Merge pull request #1261 from joshmoore/rebased/dev_4_4/11074-export-close

11074 export close (rebased onto dev_4_4)
merge dev_4_4 -D org -I include -E exclude: PR 982 (Add support for Ice 3.5)
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 1176 (Import status tb dev 4 4)
merge dev_4_4 -D org -I include -E exclude: PR 1233 (OMERO.matlab: add object creation functions (see #10637))
merge dev_4_4 -D org -I include -E exclude: PR 1234 (Web image object id extension 11022)
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 1279 (Orphan folder dev 4 4)
merge dev_4_4 -D org -I include -E exclude: PR 1281 (Viewer issue dev 4 4)
merge dev_4_4 -D org -I include -E exclude: PR 1282 (Refresh browser dev 4 4)
merge dev_4_4 -D org -I include -E exclude: PR 1295 (Do not flush all thumbnails when refreshing.)
merge dev_4_4 -D org -I include -E exclude: PR 1301 (ROIs right_plugin uses .omeroweb_right_plugin())
merge dev_4_4 -D org -I include -E exclude: PR 1302 (Python code examples and scripts for Paris)
merge dev_4_4 -D org -I include -E exclude: PR 1306 (Training java)
merge dev_4_4 -D org -I include -E exclude: PR 1314 (plate_thumbs_11160)
merge dev_4_4 -D org -I include -E exclude: PR 1319 (Server name tb dev 4 4)