tweeper.php: add "image/png" to the supported types for <enclosure/>

diff --git a/tweeper.php b/tweeper.php
index cc261ef..f7e0a88 100644 (file)
--- a/tweeper.php
+++ b/tweeper.php
@@ -132,6 +132,7 @@ class Tweeper {
       "audio/x-midi",
       "image/gif",
       "image/jpeg",
+      "image/png",
       "video/avi",
       "video/mp4",
       "video/mpeg",