Update thor dependency to version 0.17.0
Update thor dependency to version 0.17.0

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