ban-circle -> ban, bar-chart -> bar-chart-o, beaker -> flask, bell -> bell-o, bell-alt -> bell, bitbucket-sign -> bitbucket-square, bookmark-empty -> bookmark-o, building -> building-o (4.0.2), calendar-empty -> calendar-o, check-empty -> square-o, check-minus -> minus-square-o, check-sign -> check-square, check -> check-square-o, chevron-sign-down -> chevron-down, chevron-sign-left -> chevron-lef