dbi-link - dbi-link: Moved tests to the new test directory.

Log Message:
-----------
Moved tests to the new test directory.
Changed USAGE.txt to reflect current usage
Banged head on monitor trying to figure out why schema-qualified
trigger functions don't seem to exist.

Modified Files:
--------------
    dbi-link:
        USAGE.txt (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/dbi-link/dbi-link/USAGE.txt.diff?r1=1.1&r2=1.2)
        dbi_link.sql (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/dbi-link/dbi-link/dbi_link.sql.diff?r1=1.1&r2=1.2)
        make_connection.sql (r1.5 -> r1.6)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/dbi-link/dbi-link/make_connection.sql.diff?r1=1.5&r2=1.6)

Added Files:
-----------
    dbi-link/test:
        pg.sql (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/dbi-link/dbi-link/test/pg.sql?rev=1.1&content-type=text/x-cvsweb-markup)
        settings.xls (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/dbi-link/dbi-link/test/settings.xls?rev=1.1&content-type=text/x-cvsweb-markup)

Removed Files:
-------------
    dbi-link:
        settings.xls
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/dbi-link/dbi-link/settings.xls)
        test_pg.sql
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/dbi-link/dbi-link/test_pg.sql)