git-svn-id: http://piwigo.org/svn/branches/2.3@15737 68402e56-0260-453c-a942-63ccdbb3a9ee
Merge autoupdate plugin into piwigo core. git-svn-id: http://piwigo.org/svn/trunk@10511 68402e56-0260-453c-a942-63ccdbb3a9ee