TT#100601 use static versioning for production environment

> stores the file names it handles by appending the MD5 hash of the
> file’s content to the filename.
> For example, the file css/styles.css would also be saved
> as css/styles.55e7cbb9ba48.css.

Change-Id: I74a7eba6ed12f85a6e9dc30530ef2a43014031c3

repoapi/settings/prod.py

@@ -1,4 +1,4 @@
-# Copyright (C) 2015 The Sipwise Team - http://sipwise.com
+# Copyright (C) 2015-2020 The Sipwise Team - http://sipwise.com
 #
 # This program is free software: you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by the Free
@@ -85,7 +85,9 @@ DATABASES = {
         "PORT": "",
     }
 }
-
+STATICFILES_STORAGE = (
+    "django.contrib.staticfiles.storage.ManifestStaticFilesStorage"
+)
 GITWEB_URL = "https://git.mgm.sipwise.com/gitweb/?p={}.git;a=commit;h={}"
 WORKFRONT_CREDENTIALS = join(BASE_DIR, "/etc/jenkins_jobs/workfront.ini")
 WORKFRONT_NOTE = True