Fix bug in new js for separate SymPy menu
Fix bug in new js for separate SymPy menu

ipython-contrib/IPython-notebook-extensions,jcb91/IPython-notebook-extensions,jcb91/IPython-notebook-extensions,ipython-contrib/IPython-notebook-extensions,juhasch/IPython-notebook-extensions,juhasch/IPython-notebook-extensions,ipython-contrib/IPython-notebook-extensions,ipython-contrib/IPython-notebook-extensions,moble/jupyter_boilerplate,jcb91/IPython-notebook-extensions,juhasch/IPython-notebook-extensions