fix(input-group): BS V4.beta CSS no longer has the `has-${state}` classes (#1155)
fix(input-group): BS V4.beta CSS no longer has the `has-${state}` classes (#1155)


tmorehouse/bootstrap-vue,sschadwick/bootstrap-vue,sschadwick/bootstrap-vue,tmorehouse/bootstrap-vue,bootstrap-vue/bootstrap-vue,bootstrap-vue/bootstrap-vue,sschadwick/bootstrap-vue