Full support for recording of method (/dependency) that throws an Exception

[mkotsbak]

In case an exception is thrown, it should be recorded.

[mkotsbak]

I am working on this now in my branch http://github.com/mkotsbak/jackbox/tree/topic/support_exceptions .

Just test and potential support for serializing is missing.

[mkotsbak]

Implemented and pushed. Implementation does not take into account the content of the throwable class, just the type, so I let this issue be open. That can be essential in cases the content is checked by the code, for instance the original cause of a wrapping exception type.

Implementation of that is partly outcommented in the code. It stopped on circual references in Gson.