feat(mozilla-central): #2038 Add a moz.build for copying over to mozilla-central
feat(mozilla-central): #2038 Add a moz.build for copying over to mozilla-central

JaredKerim-Mozilla/activity-stream,AdamHillier/activity-stream,Mardak/activity-stream,AdamHillier/activity-stream,sarracini/activity-stream,rlr/activity-streams,Mardak/activity-stream,mozilla/activity-streams,mozilla/activity-stream,rlr/activity-streams,JaredKerim-Mozilla/activity-stream,sarracini/activity-stream,AdamHillier/activity-stream,mozilla/activity-stream,JaredKerim-Mozilla/activity-stream,AdamHillier/activity-stream,Mardak/activity-stream,Mardak/activity-stream,mozilla/activity-streams,rlr/activity-streams,mozilla/activity-stream,mozilla/activity-stream,rlr/activity-streams,sarracini/activity-stream,sarracini/activity-stream,JaredKerim-Mozilla/activity-stream