For 0.3 - cleaned up patches rebased on origin/master

[Dirk Hohndel]

Carl, 

based on your comment on IRC I have rebased this patch to the current
origin/master and split it in two parts, one that makes the Received: header
special when getting headers from a message file, and one that changes the
heuristic by which we guess the best From: header. This passes the tests that
have been committed last week.

I tried to get git send-email to make this a reply to the previous version of
this patch...

/D

-- 
Dirk Hohndel
Intel Open Source Technology Center