Build 3.5.0.34 of xlsgen fixes another set of issues related to print, preview and PDF generation.

It includes the following :
- Better scaling of header/footer fonts
- Automatic source code generator better reflects the header/footer sections from XLSX files
- Support the rendering of custom header/footer in random order
- Use the normal font for the header/footer
- Scale header/footer when rendering text
- Improved the rendering of multi-line rich labels in text boxes and vector shapes
- Improved the rendering of multi-line rich labels in cells