log the notebook server directory

suggestion provided by @Carreau

IPython/frontend/html/notebook/notebookapp.py

@@ -484,7 +484,6 b' class NotebookApp(BaseIPythonApplication):'
         )
         kls = import_item(self.notebook_manager_class)
         self.notebook_manager = kls(config=self.config, log=self.log)
-        self.notebook_manager.log_info()
         self.notebook_manager.load_notebook_names()
         self.cluster_manager = ClusterManager(config=self.config, log=self.log)
         self.cluster_manager.update_profiles()
@@ -576,7 +575,10 b' class NotebookApp(BaseIPythonApplication):'
         """
         # FIXME: remove this delay when pyzmq dependency is >= 2.1.11
         time.sleep(0.1)
-        sys.stdout.write("Shutdown Notebook Server at %s (y/[n])? " % self._url)
+        info = self.log.info
+        info('interrupted')
+        self.print_notebook_info()
+        info("Shutdown this notebook server (y/[n])? ")
         sys.stdout.flush()
         r,w,x = select.select([sys.stdin], [], [], 5)
         if r:
@@ -615,6 +617,11 b' class NotebookApp(BaseIPythonApplication):'
         self.log.info('Shutting down kernels')
         self.kernel_manager.shutdown_all()
 
+    def print_notebook_info(self):
+        "Print the current working directory and the server url information"
+        self.notebook_manager.log_info()
+        self.log.info("The IPython Notebook is running at: %s" % self._url)
+
     def start(self):
         """ Start the IPython Notebok server app, after initialization
         
@@ -625,7 +632,7 b' class NotebookApp(BaseIPythonApplication):'
         info = self.log.info
         self._url = "%s://%s:%i%s" % (proto, ip, self.port,
                                       self.base_project_url)
-        info("The IPython Notebook is running at: %s" % self._url)
+        self.print_notebook_info()
         info("Use Control-C to stop this server and shut down all kernels.")
 
         if self.open_browser or self.file_to_run: