Add example of copyright and license dunders in source files

virtualmeetings/admin.py

+__copyright__ = "Copyright 2016-2018, Stichting SciPost (SciPost Foundation)"
+__license__ = "AGPL v3"
+
+
 from django.contrib import admin
 
 from django import forms

virtualmeetings/apps.py

+__copyright__ = "Copyright 2016-2018, Stichting SciPost (SciPost Foundation)"
+__license__ = "AGPL v3"
+
+
 from django.apps import AppConfig
 
 

virtualmeetings/constants.py

+__copyright__ = "Copyright 2016-2018, Stichting SciPost (SciPost Foundation)"
+__license__ = "AGPL v3"
+
+
 MOTION_AMENDMENTS = 'ByLawAmend'
 MOTION_WORKFLOW = 'Workflow'
 MOTION_GENERAL = 'General'

virtualmeetings/forms.py

+__copyright__ = "Copyright 2016-2018, Stichting SciPost (SciPost Foundation)"
+__license__ = "AGPL v3"
+
+
 from django import forms
 
 from .models import Feedback, Nomination, Motion

virtualmeetings/models.py

+__copyright__ = "Copyright 2016-2018, Stichting SciPost (SciPost Foundation)"
+__license__ = "AGPL v3"
+
+
 from django.core.urlresolvers import reverse
 from django.db import models
 from django.shortcuts import get_object_or_404

virtualmeetings/tests.py

+__copyright__ = "Copyright 2016-2018, Stichting SciPost (SciPost Foundation)"
+__license__ = "AGPL v3"
+
+
 from django.test import TestCase
 
 # Create your tests here.

virtualmeetings/urls.py

+__copyright__ = "Copyright 2016-2018, Stichting SciPost (SciPost Foundation)"
+__license__ = "AGPL v3"
+
+
 from django.conf.urls import url
 
 from . import views

virtualmeetings/views.py

+__copyright__ = "Copyright 2016-2018, Stichting SciPost (SciPost Foundation)"
+__license__ = "AGPL v3"
+
+
 import datetime
 
 from django.contrib import messages