- factored the management of column numbers into a separate helper class

- factored the management of column numbers into a separate helper class
- moved the PendingSpan inner class from TableFObj into TableCellContainer, where it's a bit more appropriate
- simplified the getTable method in TableFObj by overriding it in Table
- simplified the propertyMaker for column-number: now it's the table-cell which notifies the parent table-body that it starts a new row. As an additional benefit the propertyMaker for starts-row is now called only once, instead of twice before
- reworked, factored and simplified the handling of column indices in TableCellContainer
- bugfix: repeated fo:table-column were not added at the right place in the column lists
- bugfix: width set on cell on second row was applied to the column's width, whereas it shouldn't
- checkstyle cleanup

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@590136 13f79535-47bb-0310-9956-ffa450edef68