Bindings for postgresql 9.4 and 9.5

```

include "postgres.h"

include "fmgr.h"

include "utils/builtins.h"

include "utils/json.h"

include "utils/lsyscache.h"

include "replication/output_plugin.h"

include "replication/logical.h"

```

If you notice that there's api not present You may need to contact the parent project's maintainers on #jsoncdc on efnet. Postgresql will add api even within a major version.