Support show=image-1|image-2
New OmeroWeb/test for show=project-1|project-2
Fix flake8 errors
Fix flake8 errors
Implement iLdap.discover().
Add test; use BiMap in implementation.
initially_select always == initially_open if first_object 'well'
Don't use BiMap due to Ice type mapping.
Remove unused parameters from ldap.py.
Web test_show tests multiple wells

Selection of multiple wells is not currently supported
but we test that at least the first well is selected and
shown, while the second well is ignored.
Fix flake8 errors
Convert CLI chgrp help tests as unit tests
Convert TestDownload.testInvalidInput as unit test
Convert CLI group help test as unit tests
Convert CLI user help test as unit tests
Convert CLI script help tests as unit tests
Convert CLI sessions help tests as unit tests
Update Javadoc.
Flake8 omero.scripts
Flake8 omero.processor