npgsql - Npgsql2: [#1010780] Reduce use of utility queries for function

Log Message:
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[#1010780] Reduce use of utility queries for function calls (CommandType.StoredProcedure) Thanks Noah Mishc for patches
(1of 2): 

2010-03-18  Noah Misch  <noah.misch @nospam@ channeladvisor.com>

    * src/Npgsql/NpgsqlCommand.cs (functionReturnsRefCursor): Delete
    property.
    (GetReader): When a function returns a single refcursor column,
    immediately fetch from all those cursors and return that data.
    (GetClearCommandText): Do not call `CheckFunctionReturn' or
    `ProcessRefcursorFunctionReturn'.
    (CheckFunctionReturn, ProcessRefcursorFunctionReturn): Delete methods.

Modified Files:
--------------
    Npgsql2/src/Npgsql:
        NpgsqlCommand.cs (r1.49 -> r1.50)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlCommand.cs?r1=1.49&r2=1.50)