- Added logic to wrap custom (user) message converters with NegotiatingMessageConverterWrapper
- Removed 'addDefaultConverters' flag from ContextFunctionCatalogAutoConfiguration as it is more confusing then useful
- Added test which uses wild card accept content-type with several converters available to ensure the appropriate one is used
- Made NegotiatingMessageConverterWrapper package private and moved it and it's test to a contex.config package
Resolves#462