with klauncher no longer responsible for KIO slave the next step is to
make them plugins and the feature to put them on hold will be of no value
because QLibrary reuses library/plugin instances and creating a new
slave object will be cheap
in other words the performance will be similar to that of KFileMetaInfo
for which I also wrote the plugins myself - they are pretty quick
compared to what strigi was doing and with more flexible configuration
interface but it took some effort to get there
Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
