reindexdb script required in 8.1?

[David Wall <d.wall@xxxxxxxxxxxx>]

I've upgraded from 8.0 to 8.1 and want to be sure I'm making the changes 
that are required.

For my backups, I have removed the option --blobs because it says this 
is no longer needed.  I guess the backup automatically includes blobs now?

I have also been running the contributed 'reindexdb' script by Shaun 
Thomas in my backups.  Is that still necessary?  It does not appear to 
be part of the contrib area anymore.

Also, my backup scripts still run vacuumlo.  I rebuilt that in 8.1 and 
am using that.  Is that still required or is vacuumlo part of the new 
8.1 vacuum capabilities?

Lastly, do I still need to run vacuum analyze from time to time update 
my stats, or is that done automatically?  I read about how some vacuums 
are automatic, but it's not clear if this auto-vacuum is activated by 
default or not and I'm not sure how I specify that I want this to occur.

Thanks,
David