Always show SavedBy panel in MetaDataViewer

Conflicts:
	components/insight/SRC/org/openmicroscopy/shoola/agents/metadata/view/MetadataViewerComponent.java
	components/insight/SRC/org/openmicroscopy/shoola/agents/metadata/view/MetadataViewerUI.java
Show SavedBy selection
Mark the current rendering setting in the SavedBy view

Conflicts:
	components/insight/SRC/org/openmicroscopy/shoola/agents/metadata/view/MetadataViewerUI.java
	components/insight/SRC/org/openmicroscopy/shoola/env/rnd/PixelsServicesFactory.java
	components/insight/SRC/org/openmicroscopy/shoola/env/rnd/RndProxyDef.java
Just did some code clean up and dcoumentation
Removed SavedBy action from the toolbar
Reload the viewedby thumbnails after new rendering settings were applied
Some minor fixes
Fix: MetadataViewerAgent not updating thumbnails

MetadataViewerAgent now listens to rendering settings changes of the
ImageViewer's rendering panel
Update rendering settings thumbnails on change
Fixed NPE if renderer has not been set yet
Fixed a typo
Fix: ViewedBy-Pane not reloaded after creation of new RenderingDefiniton
Fix: New created RenderingDefintions were not marked as selected
Avoid potential NPE
Mark check argument of fs sets CLI command as admin only in the help

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
Merge pull request #2663 from jburel/intensity-view-add

Intensity view add
Replace retry-on-error by sdterr message in bin/omero load --keep-going

OME-DCO-1.1-Signed-off-by: Sebastien Besson <seb.besson@gmail.com> (github: sbesson)
merge dev_5_0 -D org: PR 2563 (Update dev_5_0 submodules)
merge dev_5_0 -D org: PR 2591 (Append linux to the Linux OMERO clients)
merge dev_5_0 -D org: PR 2595 (12311 auto memory)