Re: proposal for PL packages for 8.3.

Bruce,

> I like the idea of a package being a schema.  I imagine that a package
> would put its own schema name first in the 'search_path' before
> referencing an object.  I think anything more complex is going to be too
> hard to use.
> 

Or we could just add local variables to schema and dispense with 
PACKAGES entirely.

--Josh