If a hql query retrieves non string data put a placeholder in
Merge pull request #2201 from manics/rebased/develop/hql_script_params-12115

HQL binary data (rebased onto develop)
Fix CLI plugins to comply with PEP8 1.5.0
Fix OmeroPy CLI unit tests to comply with PEP8
Merge pull request #2209 from sbesson/rebased/develop/pep8_1.5.0

Pep8 1.5.0 (rebased onto develop)
Merge remote-tracking branch 'origin' into limit_number_of_imports