Merge pull request #213 in ZP/z-push from feature/ZP-556-having-access-to-the-public-folder to develop

* commit '21c9c2f7':
  ZP-556 Remove Exception and comments. Fixed dot.
  ZP-556 Added read-only flag to - WebserviceDevice->AdditionalFolderAdd(), - ZPushAdmin->AdditionalFolderAdd(), - ASDevice->AddAdditionalFolder(), - DeviceManager->GetAdditionalUserSyncFolders().
  ZP-556 Fixed wording of notification email.
  ZP-556 Added a few dots. Added descriptions.
  ZP-556 Fix whitespace in config.
  ZP-556 undo debug config changes, renamed ZarafaChangesWrapper into KopanoChangesWrapper, removed debug output.
  ZP-556 ZarafaChangesWrapper->init() instantiates a ReplyBackImExporter if move states exist, on ZarafaChangesWrapper->ImportMessageMove() checks if the destination folder is writeable and switch to ReplyBack if not, initialize SyncParameters object of destination folder with zero synckey if it does not exist (folder is not being synchronized), save movestates if they changed in MoveItems, include ZarafaChangesWrapper, ReplyBackImExporter and ReplyBackState in autoloading map, ReplyBackImExporter tries to undo a MOVE operation for 4 time (deletion in the destination folder) as OL ignores these requests by default.
  ZP-556 Introduced Set & Get MoveStates to IChanges. Implemented interface.
  ZP-556 Added ImportMessageMove to replybackimporter, fixed typos.
  ZP-556 fixed warning if no importer is available.
  ZP-556 General: - work with read-only flag for static additional folders, - change IBackend->Setup() to include a read-only flag, - fixed Setup() read-only flag for default Backend, Combined and DiffBackend, - changed ChangesMemoryWrapper for read-only Setup() flag, - added read-only flag to SyncFolder, - added comparision method for SyncObjects that returns a human readable output with data and differences (needs improvement), - Check status before doing GetImporter() in Sync, - recheck folderstat after export to catch ReplyBack changes, - check for backendIds in resync folder of z-push-admin