npgsql - Npgsql2: Added support for parameters explicit typing on plain

Log Message:
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Added support for parameters explicit typing on plain queries (this support was already present when calling
functions).Now when sending queries, Npgsql will send the exact typing of the parameters as specified by DbType or
NpgsqlDbTypeenums. This will allow better type matching between client and server. Thanks Jon Hanna, Josh Cooley and
Agrineifor heads up. See http://pgfoundry.org/forum/message.php?msg_id=1002944 for more info. 

Modified Files:
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    Npgsql2/src/Npgsql:
        NpgsqlCommand.cs (r1.14 -> r1.15)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlCommand.cs.diff?r1=1.14&r2=1.15)
        NpgsqlConnector.cs (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlConnector.cs.diff?r1=1.10&r2=1.11)
    Npgsql2/src/NpgsqlTypes:
        NpgsqlDbType.cs (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/NpgsqlTypes/NpgsqlDbType.cs.diff?r1=1.6&r2=1.7)
        NpgsqlTypesHelper.cs (r1.9 -> r1.10)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/NpgsqlTypes/NpgsqlTypesHelper.cs.diff?r1=1.9&r2=1.10)