Add a news panel to each mod

OpenRA.Game/Manifest.cs

@@ -31,6 +31,7 @@ namespace OpenRA
 		public readonly MiniYaml LobbyDefaults;
 		public readonly Dictionary<string, Pair<string, int>> Fonts;
 		public readonly Size TileSize = new Size(24, 24);
+		public readonly string NewsUrl;
 
 		public Manifest(string mod)
 		{
@@ -82,6 +83,9 @@ namespace OpenRA
 					compat.Add(c.Trim());
 
 			MapCompatibility = compat.ToArray();
+
+			if (yaml.ContainsKey("NewsUrl"))
+				NewsUrl = yaml["NewsUrl"].Value;
 		}
 
 		static string[] YamlList(Dictionary<string, MiniYaml> yaml, string key)