Put the debug toolbar at the beginning of urlpatterns.

Otherwise devs get confused with catchall urlpatterns.

Author: aaugustin

docs/installation.rst

@@ -47,9 +47,9 @@ Add the Debug Toolbar's URLs to your project's URLconf as follows::
 
     if settings.DEBUG:
         import debug_toolbar
-        urlpatterns += [
+        urlpatterns = [
             url(r'^__debug__/', include(debug_toolbar.urls)),
-        ]
+        ] + urlpatterns
 
 This example uses the ``__debug__`` prefix, but you can use any prefix that
 doesn't clash with your application's URLs. Note the lack of quotes around