Added '64' suffix for win 64bit package.

Author: bladecoder

adventure-editor/src/main/java/com/bladecoder/engineeditor/ui/PackageDialog.java

@@ -565,6 +565,8 @@ private void packr(Platform platform, String jdk, String exe, String jar, String
 			suffix = "mac.app";
 			break;
 		case Windows64:
+			suffix = "win64";
+			break;
 		case Windows32:
 			suffix = "win";
 			break;