fixed a double // problem with export, and added a missing entry to the change log

docs/changelog/7.x.x.txt

@@ -13,6 +13,7 @@
  - Changed Manage Revisions screen to order revisions by descending revision
    date.
  - fix: 7.4 Editing SQL Form seems to break site ...?
+ - rfe: Export & files
  - URLs that would have been created like page.html/article.html are now
    created like page/article.html to make them look more realistic.
  - fix: Fixing bad link on the Event page to the search engine. Added a new

lib/WebGUI/AssetExportHtml.pm

@@ -144,6 +144,7 @@ sub _exportAsHtml {
 
 		# output which page we're exporting
 		my $pathWithFilename = $path.'/'.$filename;
+		$pathWithFilename =~ s{//}{/}g;
 		unless ($quiet) {
 			$self->session->output->print(sprintf($i18n->get('exporting page'), $pathWithFilename));
 		}