fix(toggle): Remove $root listener on unbind (Issue #680) (#698)
fix(toggle): Remove $root listener on unbind (Issue #680) (#698)

* fix(toggle): Remove $root listener on unbind

* Use named function for handler


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