Update version of ipywidgets to match labextensions (#948)
Update version of ipywidgets to match labextensions (#948)


cathalmccabe/PYNQ,yunqu/PYNQ,cathalmccabe/PYNQ,cathalmccabe/PYNQ,schelleg/PYNQ,schelleg/PYNQ,yunqu/PYNQ,cathalmccabe/PYNQ,cathalmccabe/PYNQ,yunqu/PYNQ,yunqu/PYNQ,schelleg/PYNQ,Xilinx/PYNQ,schelleg/PYNQ,Xilinx/PYNQ,cathalmccabe/PYNQ,Xilinx/PYNQ,schelleg/PYNQ,Xilinx/PYNQ,yunqu/PYNQ,Xilinx/PYNQ