Use absolute paths when checking for app settings files to include.

 - Legacy-Id: 11957

Author: levkowetz

ietf/settings.py

@@ -699,7 +699,7 @@ def skip_unreadable_post(record):
 
 for app in INSTALLED_APPS:
     if app.startswith('ietf'):
-        app_settings_file = os.path.join(app.replace('.', os.sep), "settings.py")
+        app_settings_file = os.path.join(BASE_DIR, '../', app.replace('.', os.sep), "settings.py")
         if os.path.exists(app_settings_file):
             exec "from %s import *" % (app+".settings")