changes are:
20th August 2000: wxWindows 2.2.1 released
Minor build fixes.
Use the wxCommmandEvent::IsChecked() function for checkable
menu items. This mean that the m_int parameter no longer
contains the ID of the menu!
Fixed major problems in ODBC logging code. This change is
binary backward incompatible.
Fixed reentry problems in DnD code.
Changed PostScript code so that it can handle a higher
resolution (720dpi).
Minor improvements to wxGrid code.
Corrected guffow-scrolling so that no surplus expose
events are generated.
Corrected bug in wxMask creation on 16-bit displays.
Minor correction to wxDC::DrawRoundedRectangle.
Added support for <INSERT> and <DELETE> menu accelerators.
Made wxComboBox case-sensitive.
Minor correction to doc-view architecture.
Minor wxCommandLineParser changes.
