schema awareness patch provided by Kris Jurka

...es/jdbc/org/postgresql/jdbc1/AbstractJdbc1Connection.java

...c/org/postgresql/jdbc1/AbstractJdbc1DatabaseMetaData.java

...ces/jdbc/org/postgresql/jdbc1/AbstractJdbc1Statement.java

...s/jdbc/org/postgresql/largeobject/LargeObjectManager.java

src/interfaces/jdbc/org/postgresql/test/TestUtil.java

.../jdbc/org/postgresql/test/jdbc2/DatabaseMetaDataTest.java

...rfaces/jdbc/org/postgresql/test/jdbc2/Jdbc2TestSuite.java

...dbc/org/postgresql/test/jdbc2/ServerPreparedStmtTest.java

src/interfaces/jdbc/org/postgresql/util/Serialize.java