Added keyboard shortcut for search and replace

notebook/static/notebook/js/searchandreplace.js

@@ -379,6 +379,9 @@ define(function(require){
 
     var act_all = keyboard_manager.actions.register(action_all, 'search-and-replace-dialog', 'ipython');
 
+    keyboard_manager.command_shortcuts.add_shortcuts({
+        'shift-f': 'ipython.search-and-replace-dialog'
+    });
   };