Fix OMERO.matlab delete functions using omero.cmd.DoAll

Replace deprecated queueDelete() list using omero.cmd.DoAll() and add list of
delete commands to the DoAll requests
Remove reference to docgen, LIB
Remove docgen folder

The documentation has been moved to ome-documentation.
Remove unused files.
Remove doc targets.
Remove reference to docs in the build.
Remove reference to CVS.
Remove reference to the docs folder.
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.
HTML-encode any text after in-place editing (gs-998)