Use the first CDN server name for all resources, others are still used for tileserver

src/main/java/org/genesys2/spring/AddStuffInterceptor.java

@@ -69,7 +69,7 @@ public class AddStuffInterceptor implements HandlerInterceptor, InitializingBean
 		randomCdnServer = new RandomString() {
 			@Override
 			public String getNext() {
-				return cdnServers[RandomUtils.nextInt(cdnServers.length)];
+				return cdnServers[0];
 			}
 
 			@Override