PEP8: few more changes

Taken MR comments into account:
* `and` is considered a binary operator, thus put at the beginning of the line when splitting a line,
* same for `+`,
* same for `.` (different reasons).

bda/views.py

@@ -119,8 +119,8 @@ def places_ics(request, tirage_id):
             places_dict[place.spectacle].double = True
         else:
             place.double = False
-            place.spectacle.dtend = place.spectacle.date + \
-                timedelta(seconds=7200)
+            place.spectacle.dtend = place.spectacle.date \
+                + timedelta(seconds=7200)
             places_dict[place.spectacle] = place
             spectacles.append(place.spectacle)
             filtered_places.append(place)
@@ -201,8 +201,8 @@ def do_tirage(request, tirage_id):
     data = {}
     shows = tirage_elt.spectacle_set.select_related().all()
     members = tirage_elt.participant_set.all()
-    choices = ChoixSpectacle.objects.filter(spectacle__tirage=tirage_elt).\
-        order_by('participant', 'priority').select_related().all()
+    choices = ChoixSpectacle.objects.filter(spectacle__tirage=tirage_elt) \
+        .order_by('participant', 'priority').select_related().all()
     algo = Algorithm(shows, members, choices)
     results = algo(form.cleaned_data["token"])
     total_slots = 0