CBQE-1143: Editing cbrecovery conf

- Adding tests

Change-Id: Iabc52a59a96573acf4add377e2812bfdc70e05e4
Reviewed-on: http://review.couchbase.org/26249
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>