adding keywords to appendToDOM for event and productions
change to ab order
adding private attribute methods
Fixed problems covered by current tests.
Add default value of FALSE for private property.
Add tests for private property of event.
Merge branch '1.x-dev' into 2.x

Conflicts:
	lib/CultureFeed/Cdb/Item/Event.php
	lib/CultureFeed/Cdb/Item/Production.php