Update webmock dependency to version 1.8.8
Update webmock dependency to version 1.8.8

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