Comment 331 for bug 1084

(Oh, and I'm not *just* ignoring my review duties here: because Pinstripe sets some margin and padding in the header pane, rather than just ramming the longest header label up against the left side like Qute does, just setting overflow-y on expandedHeaderView isn't a pretty solution, so unless someone else with a Mac wants to work on it, we'll have to wait while I figure out how to manage the last couple of pixels of unnecessary but still present horizontal drag-scrolling.)