add REST API

src/c3nav/urls.py

@@ -1,11 +1,13 @@
 from django.conf.urls import include, url
 from django.contrib import admin
 
+from .api import urls as api_urls
 from .control import urls as control_urls
 from .editor import urls as editor_urls
 
 urlpatterns = [
     url(r'^control/', include(control_urls)),
     url(r'^editor/', include(editor_urls)),
+    url(r'^api/', include(api_urls)),
     url(r'^admin/', admin.site.urls),
 ]