adding className to Schedule
updating submodules
Merge branch 'master' into classname_for_all

* master:
  Fixing issue in `toJSONObject` function of `Schedule` class.
updateing submodules
adding className to DateTimeRange
Merge branch 'master' into classname_for_all

* master:
  Updated ios-core with NonConsumableItem changes

Conflicts:
	submodules/soomla-ios-core
updating submodules + fixing native ios project
Merge branch 'classname_for_all'

* classname_for_all:
  updating submodules + fixing native ios project
  adding className to DateTimeRange
  updateing submodules
  updating submodules
  adding className to Schedule