customizing 'Orphaned images' container
add comment to settings.py
fixing custom template tag for retrieving settings

to display empty string instead of None
updating year in copyrights & spelling mistake
introducing hidden settings
adding default settings in process_custom_settings()
renaming hidden settings
adding comment to development settings
Update robotframwork readme file.
Fix a couple of errors and use markdown since this is an md document.
Standardise the report paths.
A few minor fixes.
Merge pull request #2235 from aleksandra-tarkowska/trash_name_config

customizing 'Orphaned images' container
Merge pull request #2292 from ximenesuk/robot-readme-dev

Update robotframework readme file. (rebased)
Update develop submodules

Repository: openmicroscopy/openmicroscopy
Already up-to-date.

Repository: openmicroscopy/bioformats
Updating a7b8690..5a66dd8
Merged PRs (fast-forward):
  # PR 1043 rleigh-dundee 'xsd-fu: Remove continued line inside genshi conditionals'

Repository: ome/scripts
Already up-to-date.

Repository: openmicroscopy/ome-documentation
Updating 6c60e92..54672e8
Merged PRs (fast-forward):
  # PR 740 hflynn 'Updating insight contributing file (rebased onto develop)'
  # PR 739 hflynn 'Unix/Linux installation: Update requirements (rebased onto develop)'
  # PR 735 sbesson 'Proposal to add integration jobs as downstream of the push job'
  # PR 733 ximenesuk 'Clarify location and group for DropBox imports. (rebased)'
  # PR 734 hflynn 'Improvements to import scenarios (rebased onto develop)'

Generated by OMERO-5.1-latest-submods#78 (http://ci.openmicroscopy.org/job/OMERO-5.1-latest-submods/78/)