Road to alpha1

Per http://wiki.postgresql.org/wiki/Alpha_release_process:

* Commit fest manager declares commit fest closed: kind of done

* Build farm status green or failures adequately explained: some
breakage because of local configuration problems (mostly old flex), no
serious problems

* Naming: 8.5alpha1

* Release notes: Final version Josh please?

* Optional: Update timezone data -- probably not

* Optional: Translation updates -- not this time

...

* Upload to ftp server -- Someone please figure out where to put this
and how to get it there.