template_code -> advertiser_creative_id fix

Ad id (advar preroll template) was gewijzigd van template_code
('preroll') naar advertiser_creative_id.

In de advar template een extra attribuut toegevoegd ('code') waar de
template_code aan wordt toegewezen.

In de js wordt nu naar code verwezen ipv id

vast/docs/adhese-vast.js.html

@@ -127,9 +127,9 @@ <h1 class="page-title">Source: adhese-vast.js</h1>
 		}
 
 		// insert the AdheseVastAd object in the schedule array using the ad's id as index to allow the palyer to retrieve it by id (as requested)
-		if (this.debug) console.log(ads[i].attributes.getNamedItem("id").nodeValue);
-		this.schedule[ads[i].attributes.getNamedItem("id").nodeValue] = new AdheseVastAd(
-			ads[i].attributes.getNamedItem("id").nodeValue,
+		if (this.debug) console.log(ads[i].attributes.getNamedItem("code").nodeValue);
+		this.schedule[ads[i].attributes.getNamedItem("code").nodeValue] = new AdheseVastAd(
+			ads[i].attributes.getNamedItem("code").nodeValue,
 			mediafiles,
 			ads[i].getElementsByTagName("Duration")[0].firstChild.nodeValue,
 			impression,