+- fixed a condition where a thread can hang during message/event processing
+- increased space between wxRadioBox label and first radio button
+- don't fail to register remaining window classes if one fails to register
+- wxFontDialog effects only turned on if a valid colour was
+ provided in wxFontData
+- Added wxTE_LEFT, wxTE_CENTRE and wxTE_RIGHT flags for text
+ control alignment.
+- Bitmap printing uses 24 bits now, not 8.