Prd 3857 crosstab repeating header - layouter fixes

This patch fixes several issues in the layouting engine, like problems with pagebreaks at the end of a report that may produce empty sheets in table exports. Fixed problems introduced in the table-layouter changes. Fixed cache-problems in the layouter. Fixed serialization problems with resource-bundles and resource-loading after deserialzation.

It adds pagebreak ability to table-layout boxes.