NSDictionary -> httpBodyString method
Added various methods to ABFileHelper + Refactoring

- Generic Paths / Read methods
- Delete methods
Added truncate method to delete all saved records
Ability to log out all purchased / resotred subscriptions and their active timespans
More generic named block type definitions
Added ABNewsstandHelper : Ease interaction with Apple Newsstand Kit Framework
Moved math macros to functions in ABMath class
Project Update
Turn of logging for whole framework by defining "ABFRAMEWORK_LOGGING 0" before header import