merge r6368,6410 from branch-2.1 to trunk

- merged the linkroot integration with the existing gallery_url (unique $conf['gallery_url'] used for RSS, mail homepage root in the browse path)
- added an option $conf['debug_mail'] - if set all outgoing mails are saved into local_data_dir

git-svn-id: http://piwigo.org/svn/trunk@6411 68402e56-0260-453c-a942-63ccdbb3a9ee

include/config_default.inc.php

@@ -328,19 +328,13 @@ $conf['double_password_type_in_admin'] = false;
 // Define if logins must be case sentitive or not at users registration. ie :
 // If set true, the login "user" will equal "User" or "USER" or "user",
 // etc. ... And it will be impossible to use such login variation to create a
-// new user account. 
+// new user account.
 $conf['insensitive_case_logon'] = false;
 
 // how should we check for unicity when adding a photo. Can be 'md5sum' or
 // 'filename'
 $conf['uniqueness_mode'] = 'md5sum';
 
-// home_page : relative url of the homepage. Empty by default.
-// It points to the index of the gallery.
-// This parameter is used if home page is not index.php of the gallery.
-// We suggest avoid the names "index.htm" or "index.html" if you set $conf['php_extension_in_urls'] to false.
-$conf['home_page'] = '';
-
 // +-----------------------------------------------------------------------+
 // |                               metadata                                |
 // +-----------------------------------------------------------------------+
@@ -464,6 +458,9 @@ $conf['debug_l10n'] = false;
 // activate template debugging - a new window will appear
 $conf['debug_template'] = false;
 
+// save copies of sent mails into local data dir
+$conf['debug_mail'] = false;
+
 // die_on_sql_error: if an SQL query fails, should everything stop?
 $conf['die_on_sql_error'] = true;