merge -c2836 from trunk to branch 2.0

- Webmaster or administrator can login to run upgrade.
- Inserting upgrade line in mysql.inc.php still work.
- Convert espagnol upgrade file to utf8.
- Minor changes in upgrade processus.
- Remove all comments in pclzip.lib.php.

git-svn-id: http://piwigo.org/svn/branches/2.0@2837 68402e56-0260-453c-a942-63ccdbb3a9ee

language/it_IT/upgrade.lang.php

@@ -25,6 +25,7 @@
 $lang['Upgrade'] = 'Upgrade';
 $lang['introduction message'] = 'This page proposes to upgrade your database corresponding to your old version of Piwigo to the current version.
 The upgrade assistant thinks you are currently running a <strong>release %s</strong> (or equivalent).';
+$lang['upgrade login message'] = 'Only administrator can run upgrade: please sign in below.';
 $lang['Upgrade from %s to %s'] = 'Upgrade from version %s to %s';
 $lang['Statistics'] = 'Statistics';
 $lang['total upgrade time'] = 'total upgrade time';
@@ -32,8 +33,9 @@ $lang['total SQL time'] = 'total SQL time';
 $lang['SQL queries'] = 'SQL queries';
 $lang['Upgrade informations'] = 'Upgrade informations';
 $lang['delete upgrade files'] = '[Security] Delete files "upgrade.php", "upgrade_feed.php", "install.php" and "install" directory';
-$lang['remove line from mysql.inc.php'] = 'In include/mysql.inc.php, remove:';
-$lang['perform a maintenance check'] = 'Perform a maintenance check in [Administration>General>Maintenance] if you encounter any problem.';
+$lang['perform a maintenance check'] = 'Perform a maintenance check in [Administration>Specials>Maintenance] if you encounter any problem.';
 $lang['deactivated plugins'] = 'As a precaution, following plugins have been deactivated. You must check for plugins upgrade before reactiving them:';
+$lang['upgrade login message'] = 'Only administrator can run upgrade: please sign in below.';
+$lang['You do not have access rights to run upgrade'] = 'You do not have access rights to run upgrade';
 
 ?>