Update twitter dependency to version 1.7.1
Update twitter dependency to version 1.7.1

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