npgsql - Npgsql2: Fix: [#1010992] System.Double to DOUBLE PRECISION

Log Message:
-----------

Fix: [#1010992] System.Double to DOUBLE PRECISION conversion bug. Thanks Udo Liess for excellent report, test case and
fix.

Modified Files:
--------------
    Npgsql2/src/Npgsql:
        NpgsqlConnector.cs (r1.35 -> r1.36)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlConnector.cs?r1=1.35&r2=1.36)
    Npgsql2/src/NpgsqlTypes:
        NpgsqlTypesHelper.cs (r1.39 -> r1.40)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/NpgsqlTypes/NpgsqlTypesHelper.cs?r1=1.39&r2=1.40)
        NpgsqlTypeConverters.cs (r1.22 -> r1.23)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/NpgsqlTypes/NpgsqlTypeConverters.cs?r1=1.22&r2=1.23)
    Npgsql2/testsuite/noninteractive/NUnit20:
        CommandTests.cs (r1.43 -> r1.44)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/NUnit20/CommandTests.cs?r1=1.43&r2=1.44)