Remove dependencies of an old version of dal

Django-autocomplete-light does not support the `modelform_factory`
anymore in recent versions. We are actually using an old version of dal
because of this.

This had to be dropped at some point… So now is a good time

cof/admin.py

@@ -6,8 +6,6 @@ from django.core.urlresolvers import reverse
 from django.utils.safestring import mark_safe
 import django.utils.six as six
 
-import autocomplete_light
-
 from .petits_cours_models import PetitCoursDemande, \
     PetitCoursSubject, PetitCoursAbility, PetitCoursAttribution, \
     PetitCoursAttributionCounter
@@ -95,7 +93,6 @@ class EventAdmin(admin.ModelAdmin):
 
 
 class EventRegistrationAdmin(admin.ModelAdmin):
-    form = autocomplete_light.modelform_factory(EventRegistration, exclude=[])
     list_display = ('__unicode__' if six.PY2 else '__str__', 'event', 'user',
                     'paid')
     list_filter = ('paid',)

cof/autocomplete_light_registry.py

@@ -1,10 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import autocomplete_light
-
-from django.contrib.auth.models import User
-
-autocomplete_light.register(
-    User, search_fields=('username', 'first_name', 'last_name'),
-    attrs={'placeholder': 'membre...'}
-)

cof/urls.py

@@ -47,9 +47,8 @@ events_patterns = [
 ]
 
 calendar_patterns = [
-    url(r'^subscription$', 'cof.views.calendar'),
-    url(r'^(?P<token>[a-z0-9-]+)/calendar.ics$',
-        'cof.views.calendar_ics')
+    url(r'^subscription$', views.calendar),
+    url(r'^(?P<token>[a-z0-9-]+)/calendar.ics$', views.calendar_ics)
 ]
 
 clubs_patterns = [