MantleFramework/Mantle — pull request #235 by dcordero (2014-02-11 12:43:34+00:00)
Title: Fix backwards compatibility for keys with value null

It seems this Pull Request https://github.com/MantleFramework/Mantle/pull/230/files

modified the behaviour of Mantle for keys with a value equals to nil. For example, having a Json as:

{
"key" : null
}

It was calling the model transformer with "nil", but right now it returns with an Error without calling the transformer.

My fault... my apologize...