ChangesMemoryWrapper from cache, fixed support for PHP 5.4 that does
clone objects from the cache (requires some explicit setting), moved
patching of folders from Synchronize() to ImportFolderChange() to update
the cache correctly (requires following AddFolder() in PHP 5.4),
introduced ChangesMemoryWrapper::SYNCHRONIZING flag to indicate to
Config() if updates on folders should be performed (should e.g. no for
FolderUpdate command), patch and re-export as new (ADD) secondary
contact folders that were synchronized as standard
(SYNC_FOLDER_TYPE_USER_CONTACT) before (ticket task). 

Released under the Affero GNU General Public License (AGPL) version 3.