Support for PostgreSQL 9.5's IMPORT FOREIGN SCHEMA 

I currently use JDBC_FDW with PostgreSQL 9.3 and db2, and works perfect, but with the Postgresql 9.5's new feature "IMPORT FOREIGN SCHEMA", after compile jdbc_fdw for work with that version (9.5), it doesn't support the new feature (ERROR:  foreign-data wrapper "jdbc_fdw" does not support IMPORT FOREIGN SCHEMA). It would be great add this functionality for use. 
