Patch to fix up LONGVARBINARY support submitted by Amit Gollapudi

(agollapudi@demandsolutions.com).
Also applied the RefCursor support patch by Nic Ferrier.  This patch allows
you too return a get a result set from a function that returns a refcursor.
For example:
call.registerOutParameter(1, Types.OTHER);
call.execute();
ResultSet rs = (ResultSet) call.getObject(1);

Modified Files:
 	jdbc/org/postgresql/core/BaseStatement.java
 	jdbc/org/postgresql/jdbc1/AbstractJdbc1ResultSet.java
 	jdbc/org/postgresql/jdbc1/AbstractJdbc1Statement.java
 	jdbc/org/postgresql/jdbc1/Jdbc1CallableStatement.java
 	jdbc/org/postgresql/jdbc1/Jdbc1PreparedStatement.java
 	jdbc/org/postgresql/jdbc1/Jdbc1Statement.java
 	jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java
 	jdbc/org/postgresql/jdbc2/Jdbc2CallableStatement.java
 	jdbc/org/postgresql/jdbc2/Jdbc2PreparedStatement.java
 	jdbc/org/postgresql/jdbc2/Jdbc2Statement.java
 	jdbc/org/postgresql/jdbc3/Jdbc3CallableStatement.java
 	jdbc/org/postgresql/jdbc3/Jdbc3PreparedStatement.java
 	jdbc/org/postgresql/jdbc3/Jdbc3Statement.java
 Added Files:
 	jdbc/org/postgresql/PGRefCursorResultSet.java
 	jdbc/org/postgresql/jdbc1/Jdbc1RefCursorResultSet.java
 	jdbc/org/postgresql/jdbc2/Jdbc2RefCursorResultSet.java
 	jdbc/org/postgresql/jdbc3/Jdbc3RefCursorResultSet.java
 	jdbc/org/postgresql/test/jdbc2/RefCursorTest.java