[dev] vfs_sql_file fix

[Chuck Hagenbuch]

Quoting Michael Varghese <mike.varghese at ascellatech.com>:

> I fixed the move and copy functionality for the sql_file driver.  Now you
> can move and copy folders in the sql_file driver.  Also added a small
> check to see if a person is trying to move a parent folder to a child folder
> (if so, then return a PEAR_Error and do not allow it). Hope this helps :)

Committed, thanks.

-chuck

--
Charles Hagenbuch, <chuck at horde.org>
must ... find ... acorns ... *thud*