Investigate hotlist buffer sorting
Autosorting seems to be broken for some reason. Merged a workaround: https://github.com/quassel/quassel/pull/83
Arguably this makes even more sense than doing dynamic autosort, because the shortcut will likely be triggered more rarely. However, if we're interested in the hottest buffer only anyway, we wouldn't need a full sort...
Merged workaround to get it into the release, however we should have a more detailed look at this.