Add missing message

Author: guille

messages.json

@@ -4,5 +4,6 @@
   "1.2014.1125": "messages/1.2014.1125.txt",
   "2.0.0": "messages/2.0.0.txt",
   "2.0.1": "messages/2.0.1.txt",
-  "2.0.4": "messages/2.0.4.txt"
+  "2.0.4": "messages/2.0.4.txt",
+  "3.0.1": "messages/3.0.0.txt"
 }