Correctly call remove() when child views are swapped. Fix #90
Correctly call remove() when child views are swapped. Fix #90

SimenB/backbone.layoutmanager,SimenB/backbone.layoutmanager,tbranyen/backbone.layoutmanager,huang-x-h/backbone.layoutmanager,huang-x-h/backbone.layoutmanager,GerHobbelt/backbone.layoutmanager,tbranyen/backbone.layoutmanager