4.0 release
1. support image cell
2. support column visibility setting of pagedtable. double click the table on preview page to activate column visibility setting dialog.
3. complete comments of main class FJReport.
4. write a report sample, see samples directory.

4.1 release
some bugs fixed
add French language translation

4.2 release
fix landscape orientation page save/load error.
fix cell font setting error.
add numeric id to line and cell
add Zoom class, zoom function is not yet completed
