Prevent selecting unusable civs in random map setup. Fixes #813.

This was SVN commit r9392.

binaries/data/mods/public/civs/cart.json

@@ -73,5 +73,6 @@
 	],
 	"StartEntities":
 	[
-	]
+	],
-}
+	"SelectableInGameSetup": false
+}

binaries/data/mods/public/civs/pers.json

@@ -82,5 +82,6 @@
 	],
 	"StartEntities":
 	[
-	]
+	],
-}
+	"SelectableInGameSetup": false
+}

binaries/data/mods/public/civs/rome.json

@@ -86,5 +86,6 @@
 	],
 	"StartEntities":
 	[
-	]
+	],
-}
+	"SelectableInGameSetup": false
+}

binaries/data/mods/public/gui/gamesetup/gamesetup.js

@@ -387,8 +387,12 @@ function initCivNameList()
 	// Cache civ data
 	g_CivData = loadCivData();
 	
-	var civList = [ { "name": civ.Name, "code": civ.Code } for each (civ in g_CivData) ];
+	// Extract name/code, and skip civs that are explicitly disabled
-	
+	// (intended for unusable incomplete civs)
+	var civList = [ { "name": civ.Name, "code": civ.Code }
+		for each (civ in g_CivData)
+		if (civ.SelectableInGameSetup !== false) ];
+
 	// Alphabetically sort the list, ignoring case
 	civList.sort(sortNameIgnoreCase);