Document contents of test/system

refs: #961

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>
Document contents of test/lib

refs: #961

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>
Separate OML log output from CHECK's

Signed-off-by: Olivier Mehani <olivier.mehani@nicta.com.au>