Add <config:air sdk-version="25.0" />

lime/tools/platforms/AIRPlatform.hx

@@ -219,6 +219,7 @@ class AIRPlatform extends FlashPlatform {
 		
 		var context = generateContext ();
 		context.OUTPUT_DIR = targetDirectory;
+		context.AIR_SDK_VERSION = project.config.getString ("air.sdk-version", "25.0");
 		
 		var buildNumber = Std.string (context.APP_BUILD_NUMBER);
 		

templates/air/template/application.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8" ?>
-<application xmlns="http://ns.adobe.com/air/application/25.0">
+<application xmlns="http://ns.adobe.com/air/application/::AIR_SDK_VERSION::">
 	<id>::APP_PACKAGE::</id>
 	<versionLabel>::APP_VERSION::</versionLabel>
 	<versionNumber>::APP_BUILD_NUMBER_SPLIT::</versionNumber>