Description of problem: This can help us in providing future version compatibility on wire.
CHANGE: http://review.gluster.com/2511 (protocol: allow extra data in all the 'fops' over wire) merged in master by Anand Avati (avati)
CHANGE: http://review.gluster.com/2723 (core: add an extra flag to readv()/writev() API) merged in master by Anand Avati (avati)
CHANGE: http://review.gluster.com/2959 (dict: add a dict_dump() function to dump the dictionary contents) merged in master by Anand Avati (avati)
CHANGE: http://review.gluster.com/2960 (core: adding extra data for fops) merged in master by Anand Avati (avati)
Internal change, no test case to prove it, code base has the changes implemented. Hence moving it to verified state