iss #6: sort diffusion by start in explorer + space between artist and title

aircox/management/commands/diffusions.py

@@ -40,7 +40,7 @@ class Actions:
             items = schedule.diffusions_of_month(date, exclude_saved = True)
             count[0] += len(items)
 
-            # we can't bulk create because we ned signal processing
+            # we can't bulk create because we need signal processing
             for item in items:
                 conflicts = item.get_conflicts()
                 item.type = Diffusion.Type.unconfirmed \

aircox/settings.py

@@ -17,6 +17,7 @@ ensure('AIRCOX_DEFAULT_USER_GROUPS', {
         'change_sound',
         'add_track', 'change_track', 'delete_track',
         'add_tag', 'change_tag', 'delete_tag',
+        'add_comment', 'edit_comment', 'delete_comment',
     ),
     # ensure user can log in using Wagtail
     'Editors': None

aircox/signals.py

@@ -4,7 +4,7 @@ from django.contrib.auth.models import User, Group, Permission
 from django.contrib.contenttypes.models import ContentType
 from django.db.models import F
 from django.db.models.signals import post_save, pre_save, pre_delete, m2m_changed
-from django.dispatch import receiver
+from django.dispatch import receiver, Signal
 from django.utils import timezone as tz
 from django.utils.translation import ugettext as _, ugettext_lazy
 
@@ -12,6 +12,8 @@ import aircox.models as models
 import aircox.utils as utils
 import aircox.settings as settings
 
+
+
 # Add a default group to a user when it is created. It also assigns a list
 # of permissions to the group if it is created.
 #