Gapless (groan) with RoPieee and BubbleUpnp

[simoncn]

Transcoding by BubbleUPnP is a very plausible explanation for this issue. As well as the delay caused by FFmpeg transcoding, there is also a delay caused by the audio passing across the network from MinimServer to BubbleUPnP and then from BubbleUPnP to the RPi. Transcoding by MinimServer/MinimStreamer (if needed) enables the audio to pass directly from MinimServer to the RPi.