fix unstable e2e tests (#1650)
fix unstable e2e tests (#1650)

- some sample data items had same versioncreated which we use for
sorting, which made the order kind of random.
petrjasek/superdesk-core,petrjasek/superdesk-core,petrjasek/superdesk-core,superdesk/superdesk-core,superdesk/superdesk-core,superdesk/superdesk-core,superdesk/superdesk-core,petrjasek/superdesk-core