More grid demos and some bugs fixed

Made (virtual method) callbacks into Python code more safe, and
removed the confusion if there was a matching method in the base
class.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7081 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxPython/demo/wxGrid.py

@@ -5,9 +5,9 @@ from wxPython.wx import *
 
 buttonDefs = {
     814 : ('GridSimple',     'Simple wxGrid, catching all events'),
-    815 : ('GridCustEdRend', 'wxGrid showing custom Editors and Renderers'),
-    816 : ('GridCustTable',  'wxGrid using a custom Table'),
-    817 : ('GridHugeTable',  'A wxGrid with a HUGE table (100M cells!)'),
+    815 : ('GridStdEdRend',  'wxGrid showing Editors and Renderers'),
+    818 : ('GridHugeTable',  'A wxGrid with a HUGE table (100 MILLION cells!)'),
+    817 : ('GridCustTable',  'wxGrid using a custom Table, with non-string data'),
     }