* commit 'a93e5be5': (23 commits)
  ZP-995 Warnings in WebserviceInfo->ListUserFolders().
  ZP-994 On missing permissions WebserviceInfo->ListUserFolders() returns own folders.
  ZP-989 remove obsolete comments.
  ZP-990 Detect case that KOE is sending changed categories back and ignore it if categories are the same on the server and in outlook.
  ZP-989 Output current permission flags on all additional folders in AdditionalFolderList(), criteria to add a shared folder in the ChangesMemoryWrapper should always be on the read only flag, refixed typo in Kopano backend.
  ZP-989 Reverted: "Remove readonly parameter from backends' Setup() function. Check"
  ZP-984 Check permissions to access the getUsers store only in in the WebserviceDevice webservice and not generally.
  ZP-990 Detect case that KOE is sending changed categories back.
  ZP-982 Fixed typo.
  ZP-993 Allow to disable outlook and mobile devices' access separately.
  ZP-989 Backward compatibility fixes for old style folder ids.
  ZP-989 Remove readonly parameter from $additionalFolders in config.php and where it was used in the code.
  ZP-987 Allow text keys when using memcache IPC, have a defined mutex name in memcache, suppress errors on unlinking memcache-down file, use device id for IPC type (key) in PingTracking and LoopDetection (one datakey + mutex per device!), check if TopCollector is enabled without blocking the mutex.
  ZP-989 Remove readonly parameter when adding an additional folder via webservice.
  ZP-989 Remove readonly parameter from backends' Setup() function. Check for only read permission in Kopano backend Setup().
  ZP-986 Added option to completely disable the TopCollector.
  ZP-991 Fix evaluation order for PHP 7.
  ZP-978 Load policies from default section policy file.
  ZP-980 Exception of an all day recurrence is not all day.
  ZP-981 Error deleting an all-day occurrence on a mobile device. Some code style fixes.
  ...