Issue #7: Added support for switching on type and format code;
added type code to Content object,
added type- formatCode handler map in service,
type- formatCode handling for the unstructured data handler.
Issue #7: Added CodedValue class for handling type and format code.
ServiceImpl: Switch InvalidContentTypeException -> InvalidCodedValueException
CodedValue: codingSchemeName -> codeName
Updated README
PR #8: Switched to using the increment strategy for serialvers.
PR #8: Braces for single line if's
PR #8: Added a get for the default handler.
Merge pull request #8 from jembi/api-changes

Api changes