Branching 1.6 on Nov. 5

Hi all.

As has been discussed on IRC, dev@, and at the summit last week, we're shooting
for a 1.6.0 release toward the end of December, approximately 6 months after
1.5.0. Given that goal, and our typical release cycle, that would mean
branching near the end of October/beginning of November. So I'm pegging the
branch date at Nov. 5, 1700 UTC.

I'll follow this up with my standard disclaimer: this date isn't set in stone
(more like quick drying concrete). If there are serious and valid concerns, we
can push the date back a week or so, but I'm hesitant to go any farther than that.

In the meantime, please try and be a little conservative about what makes it
into trunk, so that it's pretty stable when we branch.

Thanks,
-Hyrum

PS - For reference, some previous threads on the subject are here:
http://svn.haxx.se/dev/archive-2008-09/0598.shtml
http://svn.haxx.se/dev/archive-2008-02/0847.shtml