Added wrappers for wxInputStream and the wxFileSystem family of

classes, contributed by Joerg Baumann

Added wxProcess, including ability to get streams for the child
process's stdio.

Updated the demo


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@8566 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/Main.py

@@ -20,8 +20,8 @@ from   wxPython.html import wxHtmlWindow
 
 
 _treeList = [
-    #('New since last release', ['PyShellWindow',
-    #                            ]),
+    ('New since last release', ['wxProcess',
+                                ]),
 
     ('Managed Windows', ['wxFrame', 'wxDialog', 'wxMiniFrame']),