Fix template loader issue.

Based on gregmuellegger#76

Author: dokterbob

django_mobile/conf.py

@@ -30,6 +30,12 @@ class defaults(object):
     FLAVOURS_COOKIE_HTTPONLY = False
     FLAVOURS_SESSION_KEY = u'flavour'
     FLAVOURS_TEMPLATE_LOADERS = []
+
+    DEFAULT_TEMPLATE_LOADERS = []
+    for template_engine in django_settings.TEMPLATES:
+        DEFAULT_TEMPLATE_LOADERS += template_engine.get(
+            'OPTIONS', {}).get('loaders', [])
+
     for loader in django_settings.TEMPLATE_LOADERS:
         if isinstance(loader, (tuple, list)) and loader[0] == CACHE_LOADER_NAME:
             for cached_loader in loader[1]:
@@ -39,4 +45,5 @@ class defaults(object):
             FLAVOURS_TEMPLATE_LOADERS.append(loader)
     FLAVOURS_TEMPLATE_LOADERS = tuple(FLAVOURS_TEMPLATE_LOADERS)
 
+
 settings = SettingsProxy(django_settings, defaults)