Fix use of log.warn.  Fixes #15642

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77969 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Apply patch to eliminate use of string exceptions.  Closes #15484

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77970 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix = --> == typo.  Closes #15490

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77971 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Correct FSF address. Closes #15502

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77972 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix demo shebang.  Closes #15503

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77973 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Only use CallOnInit the first time a wx.App is created

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77974 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use CallOnInit so the extra housekeeping on wxOSX_cocoa will be performed, and apple events will be able to be processed.

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77975 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Apply patch #16590 to plot.py, removes support for oldnumeric.

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77976 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Only use CallOnInit the first time, otherwise the 2nd wx.App will block when being constructed.  Fixes hang in unittests.

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77977 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add __nonzero__ for wx.Sizer.  Closes #15470

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77978 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
cleanup

git-svn-id: http://svn.wxwidgets.org/svn/wx/wxPython@77979 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775