Remove NSNull from dictionaries prior to sending to integrations (#707)
Remove NSNull from dictionaries prior to sending to integrations (#707)

* Remove NSNull from dictionaries prior to sending

* Fix NSNull for top level json object as well as NSArray

* Add example for easier testing of NSNull

* Remove stray logging statement

* Remove edge case to not polute example

djfink-carglass/analytics-ios,djfink-carglass/analytics-ios,segmentio/analytics-ios,segmentio/analytics-ios,segmentio/analytics-ios,djfink-carglass/analytics-ios,segmentio/analytics-ios