Note that the schema currently supports both string and object analysis in the
"analysis" field of a result.

* Added conversion plugins (API might change!)
* Added conversion to the analysis pipeline
* Changed behaviour of --default-plugins (it adds conversion plugins regardless)
* Added emotionModel [sic] and emotionConversion models

//TODO add conversion tests
//TODO add conversion to docs

* Added debug Dockerfile/Makefile
* Validation of examples in docs