update celery import to work with 2.2

pandora/annotation/tasks.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 # vi:si:et:sw=4:sts=4:ts=4
-from celery.decorators import task
+from celery.task import task
 
 
 

pandora/app/tasks.py

@@ -2,7 +2,7 @@
 # vi:si:et:sw=4:sts=4:ts=4
 import datetime
 
-from celery.decorators import task, periodic_task
+from celery.task import task, periodic_task
 from celery.task.schedules import crontab
 
 

pandora/archive/tasks.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 # vi:si:et:sw=4:sts=4:ts=4
-from celery.decorators import task
+from celery.task import task
 import ox
 
 from django.conf import settings

pandora/event/tasks.py

@@ -2,7 +2,7 @@
 # vi:si:et:sw=4:sts=4:ts=4
 from datetime import timedelta
 
-from celery.decorators import task, periodic_task
+from celery.task import task, periodic_task
 from celery.task.schedules import crontab
 
 

pandora/item/tasks.py

@@ -2,7 +2,7 @@
 # vi:si:et:sw=4:sts=4:ts=4
 from datetime import timedelta
 
-from celery.decorators import task, periodic_task
+from celery.task import task, periodic_task
 
 import models
 

pandora/place/tasks.py

@@ -2,7 +2,7 @@
 # vi:si:et:sw=4:sts=4:ts=4
 from datetime import timedelta
 
-from celery.decorators import task, periodic_task
+from celery.task import task, periodic_task
 from celery.task.schedules import crontab
 
 import models