Instead of HorizontalScrollOffset used placementTargetHorizontalOffset.
Merge branch 'Sitrus2' into DUI-RemoveHorizontalOffsetInTooltip
HorizontalScrollOffset removed.
Comment added.
AttachmentSide removed from tooltip.
primaryAxis removed.
Merge pull request #150 from vmoyseenko/DUI-RemoveHorizontalOffsetInTooltip

DUI: remove horizontal offset in tooltip