Rename spec version 1.1a to 2.2a

Author: RandomByte

lib/cli/commands/serve.js

@@ -105,8 +105,8 @@ serve.handler = async function(argv) {
 	}
 	let cdnUrl;
 	if (tree.server && tree.server.cdnUrl) {
-		if (tree.specVersion !== "1.1a") {
-			throw new Error(`Server configuration "cdnUrl" can only be used with specification version "1.1a". ` +
+		if (tree.specVersion !== "2.2a") {
+			throw new Error(`Server configuration "cdnUrl" can only be used with specification version "2.2a". ` +
 				`But project ${tree.metadata.name} defines "${tree.specVersion}".`);
 		}
 		cdnUrl = tree.server.cdnUrl;