RFC: cleaning up the schemas

[Ade Lovett]

Hi Folks,

There's an awful lot of duplication of effort in the mysql and pgsql  
schemas (and, in fact, there are a few discrepancies in the values  
inserted into the tables at the end).

To this end, I've created an utterly trivial script, that splits out  
the actual mysql/pgsql schemas, along with a number of "value" files,  
which will only have to be edited in one place.

The code can be found at http://tinderbox.lovett.com/patches/ 
sql.tar.gz -- it'll extract into a self-contained 'sql' directory --  
simply run:

	genschema mysql|pgsql

and pipe it into the appropriate mysql/pgsql code to create things.

Unless anyone sees any major issues with this, I'd like to go ahead  
and commit it, along with all the relevant documentation changes,  
prior to 3.0

-aDe