Merge pull request #529 from sumpfork/guilds_upgrade_icon

Change Guilds upgrade pack icon, too

Author: nickv2002

card_db_src/sets_db.json

@@ -213,7 +213,7 @@
             "upgrade"
         ],
         "has_extras": false,
-        "image": "guilds_set.png",
+        "image": "cornucopia_guilds_set.png",
         "set_name": "*guilds2ndEditionUpgrade*",
         "set_text": "",
         "short_name": "Guilds",