Revision 633961

- Fixed the rendering of the area of a table corresponding to border-separation, which must be filled with the background of the table, and not the rows.
- Improved conformance: even if a table-cell spans several rows its background must correspond to the first row spanned.
- Added support for background on fo:table-column and fo:table-header/footer/body
  TODO more testcases needed, especially tables with collapsing border model and tables broken over pages