For AU export to work with older hosts (Ableton 7, DigitalPerformer) that use Carbon style information
for plugins (they fetch info on components using rsrc files in the package, old style resource forks
that should be deprecated with OSX 10.8, but this seems to be implemented in the host and not using
the OS calls) we need to set the plugin name and the identifier in the RSRC file, this seems to work
for Ableton 7 and DP8.