Fix to prevent SQL injection attacks for code calling setObject(int,Object,int)

Fix to prevent SQL injection attacks for code calling setObject(int,Object,int)
where Object is a user supplied String and the type is a numeric type
(i.e. INTEGER,LONG,etc).
Also applied a patch from Kim Ho that fixes compile problems under jdk1.2

 Modified Files:
 	jdbc/org/postgresql/Driver.java.in
 	jdbc/org/postgresql/jdbc1/AbstractJdbc1Statement.java