+ Circular calculations of cells will now cause an exception, instead of
a stack fault.
+ New property, XLS.Sheets[0].Selection that let you control which cells
that are selected when the workbook is opened.
+ New property XLS.Sheets[0].NameAsCell['MyCell'] that will return the TCell
of a named cell. Can be used for formatting the cell.
! Exception if formulas started with an absolute cell ref ($A$1).
! Property XLS.Workbook.SelectedTab didn't work.
! Error when adding unicode strings (introduced in 2.00.20).
! Error when adding the same rich text to several cells.
! Frozen panes didn't work correct.