fix(web terminal and log kill) fix close web terminal when not init finished

when web terminal not init complete, you close the window, online log you will see the log and cann't kill it

catch a except fix it

jlog/views.py

@@ -285,7 +285,10 @@ class TermLogRecorder(object):
                                             timestamp=int(self.recoderStartTime))
             if self.user:
                 record.user.add(self.user)
-        del TermLogRecorder.loglist[str(self.id)]
+        try:
+            del TermLogRecorder.loglist[str(self.id)]
+        except KeyError:
+            pass
 
     def list(self, user=None, uid=None):
         tmp = []