Comment 10 for bug 1334279

I think switching to volume slider mode is a very prominent change we should consider carefully.
We had no complains about this, except one forum entry, where we discussed about external mixes.
There is also no technical reason for not continue using x-fader, it is just a personal preference.

I had a GSoC Project with Auto DJ and merging this is still a pending task for me I had planed to do in 1.13.
http://www.mixxx.org/wiki/doku.php/gsoc2012_autodj_features
This includes fade now buttons one each X-Fader side to start x-Fading including the desired transition effect even when no Auto-DJ is active. I would like to keep this feature.