Port away from KMimeTypeTrader
This means that KService::Ptr for parts should be replaced by KPluginMetaData. There are some problems, however: - KonqMainWindow::updateViewModeActions uses KService::actions. As far as I can tell,there isn't a replacement for it - the documentation for KPluginMetaData::serviceTypes states that "This is mostly for historical / compatibility purposes" and suggests to put all plugins of the same type in the appropriate directory. However, this is out of our control, as the plugins come from other applications. What's the best way to approach this problem?