usePrimitives and useLongIntegers have no impact on generated code

[techpavan]

I see that these parameters have no impact on the generated model classes or method parameters. Not sure if all other options are working well, but its preferable to take a check. If needed, I shall host my demo project on github. All "integer"s is getting generated as Long which I would prefer to be a primitive.

[stojsavljevic]

PojoGenerationConfig together with his attributes is passed to jsonschema2pojo library for generating POJOs from json schemas.
Now I'm putting effort to reuse those same attributes when generating from data types.

[stojsavljevic]

Relates to #201