Feature Issue ID 0000602: Redirect must be done by html or http

Redirect it's only done by the html method but must be done too with http method.
Creation of two functions redirect_http and redirect_html.
Function redirect calls one or other functions follow $conf or parameters.

$conf value are true on BSF, in order to check modifications.
Must be set to false on RC.

git-svn-id: http://piwigo.org/svn/trunk@1649 68402e56-0260-453c-a942-63ccdbb3a9ee

include/functions_html.inc.php

@@ -609,7 +609,7 @@ function access_denied()
   else
   {
     set_status_header(401);
-    redirect($login_url);
+    redirect_html($login_url);
   }
 }
 
@@ -623,7 +623,7 @@ function page_not_found($msg, $alternate_url=null)
   set_status_header(404);
   if ($alternate_url==null)
     $alternate_url = make_index_url();
-  redirect( $alternate_url,
+  redirect_html( $alternate_url,
     '<div style="text-align:left; margin-left:5em;margin-bottom:5em;">
 <h1 style="text-align:left; font-size:36px;">Page not found</h1><br/>'
 .$msg.'</div>',