Update json dependency to version 1.7.7
Update json dependency to version 1.7.7

jasnow/follow-all,jasnow/follow-all,jasnow/follow-all,BryanH/follow-all,BryanH/follow-all,BryanH/follow-all,codeforamerica/follow-all,codeforamerica/follow-all,codeforamerica/follow-all