CE-1018 Simplify API calls interface
CE-1018 Unify API call data format
CE-1018 Document and clean-up the API interfaces
CE-1018 Get rid of an unnecessary Helper class
CE-1018 Fix fatal errors and unit tests
CE-1018 Adjusting API interface for subscriber updates
CE-1018 Unit tests fix - mock deleteTask in update test
CE-1018 Add a missing Wikihooks getter
CE-1018 Add missing documentation
CE-1018 Add missing documentation
CE-1018 Minor credentials fix
CE-1018 Add missing documentation
CE-1018 Remove unused retrieve Subscriber methods
CE-1018 use development credentials in development mode
CE-1019 Set ObjectType instead of CustomerKey for retrieve request params
Revert "CE-1018 use development credentials in development mode"

This reverts commit 869f854088f34fc61f147c7c7ecb4c61af8341bf.
CE-1104 Add  parameter for Subscriber updates
CE-1104 Don't filter by email in delete request
CE-1104 Prepare Subscriber data for remove without emailAddress field
CE-1104 Adding deleteSubscriber test