when choosing enclosures to embed or rewrite (af_zz_imgproxy) only use content type instead of "filename"-based hacks

include/functions2.php

@@ -2000,8 +2000,7 @@
 							$rv .= $retval;
 						} else {
 
-							if (preg_match("/image/", $entry["type"]) ||
-									preg_match("/\.(jpe?g|png|gif|bmp)/i", $entry["filename"])) {
+							if (preg_match("/image/", $entry["type"])) {
 
 									if (!$hide_images) {
 										$encsize = '';

plugins/af_zz_imgproxy/init.php

@@ -23,7 +23,7 @@ class Af_Zz_ImgProxy extends Plugin {
 	}
 
 	function hook_enclosure_entry($enc) {
-		if (preg_match("/image/", $enc["content_type"]) || preg_match("/\.(jpe?g|png|gif|bmp)$/i", $enc["filename"])) {
+		if (preg_match("/image/", $enc["content_type"])) {
 			$proxy_all = $this->host->get($this, "proxy_all");
 
 			$enc["content_url"] = $this->rewrite_url_if_needed($enc["content_url"], $proxy_all);