Version bump for vcmi core mod

Mods/vcmi/mod.json

@@ -78,7 +78,7 @@
 		]
 	},
 
-	"version" : "1.2",
+	"version" : "1.3",
 	"author" : "VCMI Team",
 	"contact" : "http://forum.vcmi.eu/index.php",
 	"modType" : "Graphical",