Update spring to version 1.6.1
Update spring to version 1.6.1

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