* changed RTF and XLS export filters (TfrRtfAdvExport, TfrOLEExcelExport)
- fix FielIsNull()
- fix stretched bug in TfrPictureView
- fix TfrReport.Clear
- fix bug with number of copies in 'Print' window.
- fix TfrButtonControl.SaveToFR3Stream
- fix TfrView.SaveToFR3Stream
- fixed bug with stretched breaked bands
- bug fixes
