[Fix] Update key generation for adding handlers#13

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Daniel1of1 wants to merge 3 commits intoRuiAAPeres:masterfrom

Daniel1of1:fix/dictionaryKeyAtomicity

Commits on May 31, 2019

Update key generation for adding handlers
Daniel1of1
committed

Commits on Jun 1, 2019

Update key generation for listening.
Daniel1of1
committed

Commits on Jun 18, 2019

Update key generation based on ReactiveSwift implementation.
Daniel1of1
committed