Pull from the wx 3.0 tag for buildbot builds.

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75337 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Deal with object IDs that are larger than 2**63

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@75338 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775