hook up terminado logger

IPython/html/terminal/__init__.py

@@ -1,5 +1,6 b''
 import os
 from terminado import NamedTermManager
+from tornado.log import app_log
 from IPython.html.utils import url_path_join as ujoin
 from .handlers import TerminalHandler, TermSocket
 from . import api_handlers
@@ -7,6 +8,7 b' from . import api_handlers'
 def initialize(webapp):
     shell = os.environ.get('SHELL', 'sh')
     terminal_manager = webapp.settings['terminal_manager'] = NamedTermManager(shell_command=[shell])
+    terminal_manager.log = app_log
     base_url = webapp.settings['base_url']
     handlers = [
         (ujoin(base_url, r"/terminals/(\w+)"), TerminalHandler),