make sure series updates are correctly parsed

[lu-zero]

cf
http://plaid.libav.org/project/libav/series/104
vs
http://plaid.libav.org/project/libav/series/100

And that single updates do get replace patches for the set download.

[ftomassetti]

The links are broken

[ftomassetti]

Can you provide more details on this one?

[lu-zero]

There are two ways to update a set (that I might support):

• Reply to a single patch of the set with a patch update (works now)
• Reply with a new set.

Ideally I would first support updating sets with a front-matter email and state that a set is auto-updated only if a front-matter email is the reply of another front matter.

e.g.

# git send-email --annotate -5
... hack fix update amend
# git send-email --annotate -8 --in-reply-to "message-id-of-the-front-matter"