1 - automatic linking
3 would be nice to transform the URLs in the mail' body into clickable
4 links. Additionally, it would be nice to support the [n] reference
5 syntax. Maybe turning also commit ids into links?
8 - clarify date ranges
10 Threads are sorted by their newest mail, so if an old thread gets a
11 new reply it'll jump in the first page. The date ranges thus can
12 jump quite a bit when navigating backward/forward. Is this OK? Can
13 we communicate it better?