chore(package): update react to version 15.3.1
chore(package): update react to version 15.3.1

https://greenkeeper.io/
Mardak/activity-stream,sarracini/activity-stream,mozilla/activity-stream,Mardak/activity-stream,mozilla/activity-streams,rlr/activity-streams,AdamHillier/activity-stream,mozilla/activity-stream,Mardak/activity-stream,JaredKerim-Mozilla/activity-stream,mozilla/activity-stream,sarracini/activity-stream,JaredKerim-Mozilla/activity-stream,Mardak/activity-stream,AdamHillier/activity-stream,rlr/activity-streams,mozilla/activity-streams,rlr/activity-streams,JaredKerim-Mozilla/activity-stream,rlr/activity-streams,JaredKerim-Mozilla/activity-stream,AdamHillier/activity-stream,sarracini/activity-stream,AdamHillier/activity-stream,sarracini/activity-stream,mozilla/activity-stream