Set relative heights for all default heading styles

The relative height "100%" (used only by Heading 3 now) is converted
silently to absolute height (btw, also in the dialogs and in OOo, too).
Using 101% instead of 100% fixes this problem, so setting a new height
in the parent style "Heading" (for example, by Tools->Options->
LibreOffice Writer->Basic fonts (western)->Heading->Size) can change
the heights of all default headings, including Heading 3.

Change-Id: Ia44ac9d24041b75f0aedd7b56340dd41caf0020e

sw/source/core/doc/DocumentStylePoolManager.cxx

@@ -85,7 +85,7 @@ namespace
 
     static const sal_uInt16 aHeadlineSizes[ 2 * MAXLEVEL ] = {
         // we do everything procentual now:
-        130, 115, 100, 95, 85,
+        130, 115, 101, 95, 85,
         85,   80,  80, 75, 75,  // normal
         PT_24, PT_18, PT_14, PT_12, PT_10,
         PT_7, PT_7, PT_7, PT_7, PT_7            // HTML mode