Merge pull request #1375 from mtbc/insight-thumbnail-white-border

Insight thumbnail white border
Merge pull request #1380 from snoopycrimecop/merge/dev_4_4/submodules

Update dev_4_4 submodules
Remove unused code from OmeroJava.
Fix testDeleteObjectByGroupOwnerRW().
Fix build with missing 'src' directory.
DeleteServiceTest: clean imports, use Delete cmd.
Update dates in licence headers.
Mark test as broken until fixed.
ExporterTest.java: Mark test as broken.
Clean TestNG suite definition files.
Fix OMERO-merge-stable build.
Delete coverage package.
DeleteServiceTest.java: Update test comments.
Add "testnames" property to the "suite" macro.
Add test targets to OmeroJava build.xml.
Update integration.testng.xml with granular tests.
Move test classes/methods to new groups.
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)