Code review comment for lp:~h4writer/awn/taskmanager-rewrite

I'm not going to do a detailed review of this, purely based upon the extent of the modifications. A quick overview doesn't show anything particularly egregious, though I'm sure there are issues (but the current taskmanager code probably has even more fundamental ones). I think we are best served getting this merge, the sooner the better, get it tested and shake out the bugs (and any find design issues).