#541 Changes in the scheduler of a harvester type affects all other harvester schedules of same type
#542 CSW harvester can't be saved with a search criteria defined. Occurs only if also an empty search criteria section exists
#550 Metadata set thumbnail service doesn't use the preferred protocol
Merge remote-tracking branch 'upstream/2.10.x' into 2.10.x
Bring in lastest schemaPlugins