@JsonUnwrapped does not unwrap Map values as it would unwrap any other type
of dictionary value.  Include failing test case.
Unit test for [JACKSON-890]
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Update src/main/java/com/fasterxml/jackson/databind/JsonMappingException.java

Fixed a NullPointerException when trying to call getPathReference() when no path has been prepended.
Merge pull request #175 from bramp/master

Fixed a NullPointerException when trying to call getPathReference() in JsonMappingException
Merge pull request #172 from stevenschlansker/map-unwrap

@JsonUnwrapped does not unwrap Map values as it would unwrap any other dictionary
Refactoring tests for #171, as they are failing, and may not be fixed immediately
Implement #173
Fix broken links.
Merge pull request #179 from markwoon/master

Fix broken links.
fixing polymorphic updateValue
Start working on converting deserializers
add unit tests for converting deserializers (5, failing)
More work on converters for deserialization; now passes 2/6 of new tests. Also adding 'DatabindContext', shared base class for DeserializationContext, SerializerProvider
Refactoring to demote more stuff in DatabindContext
cleanup of eclipse warnings
More work on converting deserializers
Fix a minor problem with converters, was using wrong delegate type
Complete #125 implementation