[development] Microsoft SQL Support added

[Peter Heinrich]

Hi everybody,

I've done a quick hack to support MS-SQL-Server, since my company needed 
that functionality.
I know, that MS-SQL was supported in earlier versions and that you 
decided to drop it.
Since only minor changes to the system were necessary I believe that 
supporting this database
would not take so much.

I've done that for version 4.7.2, you can get the patch here:

http://www.heinrichp.de/drupal-4.7.2-mssql.patch

This is not tested very much but it works for me quite fine.
Tested with:

Database System:
Microsoft Server 2003 Standard
Microsoft SQL Server 2005

Webserver:
Debian Sarge
PHP-Sybase driver

regards,

Peter