Provide more information in the FeatherException

It would be useful to have the exception printed in the logs or passed to the FeatherException:
[here](https://github.com/zsoltherpai/feather/blob/cb4f93dc0eb23932bda6eb24928832a82908ecf8/feather/src/main/java/org/codejargon/feather/Feather.java#L87)