Add ISO8601 Util class
Add ISO8601 Util Test class
Add Calendar and Date Gson Serializer
Add Calendar and Date Gson Deserializer
Change DefaultJsonSerializers to register optionally ISO8601 serializers
Fix null pointer exception
Add Calendar ISO8601 like serialization test
suppress warning rawtypes
Add strategy to enable ISO8601 deserializer when context-param in
web.xml is configured (same as serializer strategy)
Adapt test to new strategy
Add test to deserialize an ISO8601 pattern string
Modify class helper ISO8601Util to a @Component
Fix binding adapters bug order which prevented that ISO8601 adapters be
fired
Merge pull request #548 from dipold/iso8601

Change date/time format to ISO8601 on JSON serialization