[#153946744] Fix bug: ZiSci embedded mode offset problems By computing the 'origin' of the drag using jQuery offset, we get the drag's ghost view to slide back to the correct position even when the #codap div is not at (0,0) and the page is scrolled.
[#153946744] Fix bug: ZiSci embedded mode offset problems
By computing the 'origin' of the drag using jQuery offset, we get the drag's ghost view to slide back to the correct position even when the #codap div is not at (0,0) and the page is scrolled.

concord-consortium/codap,concord-consortium/codap,concord-consortium/codap,concord-consortium/codap,concord-consortium/codap