Applied patch from Paul Sorenson to correctly handle schema names in updateable result sets.

Applied patch from Paul Sorenson to correctly handle schema names in updateable result sets.
Applied patch from Rich Cullingford to fix a NPE in the absolute() method of result set.
Applied patch from Tarjei Skorgenes to fix a NPE when logging is enabled.

 Modified Files:
 	jdbc/org/postgresql/core/BaseResultSet.java
 	jdbc/org/postgresql/jdbc1/AbstractJdbc1ResultSet.java
 	jdbc/org/postgresql/jdbc2/Array.java
 	jdbc/org/postgresql/util/PSQLException.java