Request: update the Spring Boot REST example Spring Boot 2.0.0.RELEASE

[janvlug]

I would like to see the Spring Boot REST example updated to work with Spring Boot version 2.0.0.RELEASE.

[OndroMih]

Hi @janvlug, that would be nice. Can you help us in any way? E.g. a pull request, hints where to look at, etc.?