Fix steve-include and make skin update warnings a debug-message

Author: TBlueF

BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/plugin/skins/PlayerSkin.java

@@ -70,7 +70,7 @@ public void update(File storageFolder) {
 				BufferedImage head = createHead(skin);
 				ImageIO.write(head, "png", new File(storageFolder, uuid.toString() + ".png"));
 			} catch (ExecutionException | TimeoutException e) {
-				Logger.global.logWarning("Failed to load player-skin from mojang-servers: " + e);
+				Logger.global.logDebug("Failed to load player-skin from mojang-servers: " + e);
 			} catch (IOException e) {
 				Logger.global.logError("Failed to write player-head image!", e);
 			} catch (InterruptedException ignore) {}

BlueMapCore/src/main/webroot/js/libs/hud/PlayerMarker.js

@@ -2,6 +2,8 @@ import $ from 'jquery';
 import Marker from "./Marker";
 import {CSS2DObject} from "./CSS2DRenderer";
 
+import STEVE from "../../../assets/playerheads/steve.svg";
+
 export default class PlayerMarker extends Marker {
 
 	constructor(blueMap, markerSet, markerData, playerUuid, worldUuid) {
@@ -21,7 +23,7 @@ export default class PlayerMarker extends Marker {
 		this.blueMap.updateFrame = true;
 
 		if (!this.renderObject){
-			let iconElement = $(`<div class="marker-player"><img src="assets/playerheads/${this.player}.png" onerror="this.onerror=null;this.src='assets/playerheads/steve.png';"><div class="nameplate">${this.label}</div></div>`);
+			let iconElement = $(`<div class="marker-player"><img src="assets/playerheads/${this.player}.png" onerror="this.onerror=null;this.src='${STEVE}';"><div class="nameplate">${this.label}</div></div>`);
 			iconElement.find("img").click(this.onClick);
 
 			this.renderObject = new CSS2DObject(iconElement[0]);