Inserted "stdio catch" in wxExecute. The activation is controlled by wxProcess.

Inserted "stdio catch" in wxExecute. The activation is controlled by wxProcess.
Completed some TODO in wxMMedia (wxSoundUlaw, ...)
Reworked the PCM converted: it should be simpler to add converters now and it is
cleaner.
Implemented status information in wxVideoWindows but it doesn't work on my
Win98SE (UNSUPPORTED_FUNCTION)
Changed *ERR into *ERROR
Added a TODO: we must detect the best format in wxSoundWindows

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6311 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775