Fix Hyperlink with in the table should be displayed clearly.
The reason was that we never handled the 'normal' case where the text should not be
super- or subscript and therefore once super- or subscript was set all child-styles
inherited it and where not able to go back to 'normal' state. This is fixed now
by using the "0% 100%" hack OO.org uses too to define the 'normal' text-position.