- finished transformation
- remove indentation from mustache templates
- store YAML in file when --printYaml is given

- changed semantics of ViaTest slightly (setting same value for inputBoth does not change to newly send value as the "FromMqtt-" and "FromRest-" part is not prepended, and therefore it stays the same)

- differentiate between push-send and pull-send

- also fixed bug when using tokens with no type (must be treated implicitly as String)

- added fail-fast behaviour to mustache (if a name/method can not be resolved)
- enabled logging of mustache (using log4j)