Bind iopub callbacks when setting view options
Bind iopub callbacks when setting view options

Prior to this commits, the view’s iopub callbacks were re-bound to the output area’s iopub callbacks every time the callbacks were called. They are now just bound once when the view options are instantiated.

SylvainCorlay/ipywidgets,SylvainCorlay/ipywidgets,ipython/ipywidgets,SylvainCorlay/ipywidgets,jupyter-widgets/ipywidgets,SylvainCorlay/ipywidgets,ipython/ipywidgets,jupyter-widgets/ipywidgets,jupyter-widgets/ipywidgets,ipython/ipywidgets,ipython/ipywidgets,jupyter-widgets/ipywidgets,ipython/ipywidgets