npgsql - Npgsql2: Fixed nunit tests, added some util scripts.

Log Message:
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Fixed nunit tests, added some util scripts. Thanks Tao Wang for patches.

Modified Files:
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    Npgsql2/testsuite/noninteractive:
        add_tables.sql (r1.3 -> r1.4)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/add_tables.sql.diff?r1=1.3&r2=1.4)
        add_data.sql (r1.1 -> r1.2)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/add_data.sql.diff?r1=1.1&r2=1.2)
    Npgsql2/testsuite/noninteractive/NUnit20:
        CommandTests.cs (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/NUnit20/CommandTests.cs.diff?r1=1.2&r2=1.3)
        ConnectionTests.cs (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/NUnit20/ConnectionTests.cs.diff?r1=1.2&r2=1.3)

Added Files:
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    Npgsql2/testsuite/noninteractive:
        cleanDB.bat (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/cleanDB.bat?rev=1.1&content-type=text/x-cvsweb-markup)
        makeDB.bat (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/makeDB.bat?rev=1.1&content-type=text/x-cvsweb-markup)