remove the superfluous '.'s from the exportBinaryExtensions config field and

update exportGetUrlAsPath's regex to match.

etc/WebGUI.conf.original

@@ -837,36 +837,36 @@
 # extensions that the export system should pass through as-is instead of using
 # index.html
 "exportBinaryExtensions" : [
-    ".html",
-    ".htm",
-    ".txt",
-    ".pdf",
-    ".jpg",
-    ".css",
-    ".gif",
-    ".png",
-    ".doc",
-    ".xls",
-    ".xml",
-    ".rss",
-    ".bmp",
-    ".mp3",
-    ".js",
-    ".fla",
-    ".flv",
-    ".swf",
-    ".pl",
-    ".php",
-    ".php3",
-    ".php4",
-    ".php5",
-    ".ppt",
-    ".docx",
-    ".zip",
-    ".tar",
-    ".rar",
-    ".gz",
-    ".bz2"
+    "html",
+    "htm",
+    "txt",
+    "pdf",
+    "jpg",
+    "css",
+    "gif",
+    "png",
+    "doc",
+    "xls",
+    "xml",
+    "rss",
+    "bmp",
+    "mp3",
+    "js",
+    "fla",
+    "flv",
+    "swf",
+    "pl",
+    "php",
+    "php3",
+    "php4",
+    "php5",
+    "ppt",
+    "docx",
+    "zip",
+    "tar",
+    "rar",
+    "gz",
+    "bz2"
 ]
 
 }