HPCC-9699 Java embed is not working on Ubuntu 13.04

Include paths not found

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #4643 from richardkchapman/embedjava-1304

HPCC-9699 Java embed is not working on Ubuntu 13.04

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>