Added french translation files for backend and frontend.

frontend/fr/users.json

@@ -0,0 +1,27 @@
+{
+    "consumers": {
+        "login": "Login",
+        "logout": "Logout",
+        "password": "Password",
+        "mail": "Mail",
+        "user_page": "User Page",
+        "sign_in_ad": "Sign in to create watch lists.",
+        "add_object_to": "Add object to",
+        "remove_from": "Remove from",
+        "merklisten": "Watch list",
+        "add_a_new_list": "Add a new list",
+        "send": "Send",
+        "list_title": "List title",
+        "delete": "Delete",
+        "hide": "Hide",
+        "download_as_text_file": "Download as text file",
+        "download_as_html_file": "Download as HTML file",
+        "list": "Watch list",
+        "your_lists": "Your Lists",
+        "username": "User Name",
+        "active_list": "Active list",
+        "this_list_is_empty": "This list is empty!",
+        "return_to_user_page": "Return to user page",
+        "publish": "Publish"
+    }
+}