Made fields final.
Don't need to provide a path annotation here.
Added todo as this URI generation method doesn't work.
Added APIApplication to provide Jersey with proper configuration. Should investigate using plain JAX-RS Application instead.
Added Jackson, JAXB and Jersey dependencies (some are not required to compile but useful to record them so that we know which bundles need to be added to Jahia).
Use JAX-RS-Application configuration instead of JAX-RS-Classes per changes in JAX-RS OSGi extender.