added support for deserializing a dictionary's values to a list
fixed build error in JsonDeserializer when building dictionaries
added unit test for deserializing a Dictionary<String,List<T>>
fixed BuildDictionary in JsonDeserializer to add all elements from the JsonArrays
updated JsonDeserializer to handle Dictionarys<String,List<T>> by just calling BuildList method which fixed confusion around list of lists.

Also updated the sample data to more clearly show lists vs list of lists
Merge pull request #439 from davidgrupp/master

Added support to JsonDeserializer for deserializing a Dictionary to a Dictionary<String,List<T>>