4.99.4.1: 2011-09-21 Murray Cumming ServerProvider: Added supports_operation() method overloads. * libgda/src/serverprovider.[hg|ccg]: Because some parameters may be NULL. 2011-09-21 Murray Cumming Connection: Add statement_to_sql() method overloads. * libgda/src/connection.[hg|ccg]: Because some parameters can be NULL.