Switch to side-by-side view

--- a/ForgeWiki/forgewiki/wiki_main.py
+++ b/ForgeWiki/forgewiki/wiki_main.py
@@ -538,9 +538,9 @@
                 self.thumbnail.delete()
             redirect(request.referer)
         with self.attachment.open() as fp:
-            filename = fp.metadata['filename']
+            filename = fp.metadata['filename'].encode('utf-8')
             response.headers['Content-Type'] = ''
-            response.content_type = fp.content_type
+            response.content_type = fp.content_type.encode('utf-8')
             if not embed:
                 response.headers.add('Content-Disposition',
                                      'attachment;filename=%s' % filename)
@@ -550,9 +550,9 @@
     @expose()
     def thumb(self, embed=False):
         with self.thumbnail.open() as fp:
-            filename = fp.metadata['filename']
+            filename = fp.metadata['filename'].encode('utf-8')
             response.headers['Content-Type'] = ''
-            response.content_type = fp.content_type
+            response.content_type = fp.content_type.encode('utf-8')
             if not embed:
                 response.headers.add('Content-Disposition',
                                      'attachment;filename=%s' % filename)