updated release date

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/trunk@77551 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Update generated ReST docs.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxPython/trunk@77552 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775