Merge pull request #430 in ZP/z-push from bugfix/ZP-1112-get-timezone-from-z-push-or-system to develop

* commit 'bbd75d07':
  ZP-1112 Add "W. Europe Standard Time" to the timezone list.
  ZP-1112 Get timezone from Z-Push or system if it's empty for getMSTZnameFromTZName.