Request: X,Y offset for ANCHOR_CURSOR *or* knowing when GameTooltip is unused

[Thrae]

In TinyTip, one has the option of setting an X,Y offset to ANCHOR_CURSOR. This is done using an OnUpdate script, and the hacks needed to remove the fading effect that ANCHOR_CURSOR normally gives are messy. I'd rather just be able to give the offset directly with a call to SetOwner.

Alternatively, the hacks wouldn't be necessary if OnHide was thrown *before* the fading starts. The problem occurs when one mouses over a unit then a doodad (item in the WorldFrame not a unit) -- besides OnTooltipCleared, nothing else is called, and OnTooltipCleared is called multiple times for other events.