Rework a few basic views

No need to have explicit view functions for a few basic views,
we just use the built-in TemplateView instead.

config/urls.py

@@ -6,6 +6,7 @@ from django.conf import settings
 # Uncomment the next two lines to enable the admin:
 from django.contrib import admin
 admin.autodiscover()
+from django.views.generic import TemplateView
 
 # Import feeds
 from events.feeds import EventFeed, feedview
@@ -20,12 +21,17 @@ feeds = {
     'latest' : EventFeed
 }
 
+
 urlpatterns = [
     url(r'^$', events.views.index, name="home"),
-    url(r'^navbar_only$', events.views.navbar_only, name="navbar-only"),
-    url(r'^SPInfo', events.views.spinfo, name="spinfo"),
-    url(r'^SPPrivacy', events.views.spprivacy, name="spprivacy"),
-    url(r'^DiscoveryService', events.views.discovery, name="discovery"),
+    url(r'^navbar_only$', TemplateView.as_view(
+        template_name='navbar_only.html'), name="navbar-only"),
+    url(r'^SPInfo', TemplateView.as_view(template_name='gracedb/spinfo.html'),
+         name="spinfo"),
+    url(r'^SPPrivacy', TemplateView.as_view(
+        template_name='gracedb/spprivacy.html'), name="spprivacy"),
+    url(r'^DiscoveryService', TemplateView.as_view(
+        template_name='discovery.html'), name="discovery"),
     url(r'^events/', include('events.urls')),
     url(r'^superevents/', include('superevents.urls')),
     url(r'^options/', include('userprofile.urls')),

gracedb/events/views.py

@@ -134,19 +134,6 @@ def index(request):
     
     return render(request, 'gracedb/index.html', context=context)
 
-def navbar_only(request):
-    return render(request, 'navbar_only.html')
-
-# SP Info and Privacy pages are required for Federation with InCommon. 
-def spinfo(request):
-    return render(request, 'gracedb/spinfo.html')
-
-def spprivacy(request):
-    return render(request, 'gracedb/spprivacy.html')
-
-def discovery(request):
-    return render(request, 'discovery.html')
-
 @event_and_auth_required
 def voevent(request, event):
     # Default VOEvent type is 'preliminary'