AUI-1450 "Load More Results" always loads again and again last elements despite of there aren't more nodes
AUI-1450 TreeView should not show more nodes than what's defined in paginator.total
AUI-1450 Adding tests
AUI-1450 Fixing tests
AUI-1450 Fixing for the case when paginator is not defined
AUI-1450 Adding tests
AUI-1450 - Source formatting