Stopped nodeviews losing padding when dragged.
Cleaned up insertion point finding code a bit more.
Allowed a nodeview to be inserted into an empty nodeview.
Fixed flickering when dragging out the bottom of a nodeview.
Removed description.
Moved add exercise/node buttons in line with program title.
Moved buttons out of scrollview, now can only see node view when not editing.
Fixed nodeview not showing up when editing, crashes when adding button.
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Mostly fixed dragging.
Dragging working a bit better.
Drag n drop is silky smooth once more.