 
     propTypes :
         editor_settings : rtypes.immutable.Map.isRequired
+        email_address : rtypes.string
         on_change       : rtypes.func.isRequired
 
     shouldComponentUpdate: (props) ->

        autosave        : rtypes.number
        tab_size        : rtypes.number
        font_size       : rtypes.number
        editor_settings : rtypes.immutable.Map

    shouldComponentUpdate: (props) ->

                        tab_size        = {@props.tab_size}
                        font_size       = {@props.font_size}
                        editor_settings = {@props.editor_settings}
                        email_address   = {@props.email_address}
                        redux           = {@props.redux} />
                    <TerminalSettings
                        terminal = {@props.terminal}
