Refactor TextGenerator and associated StreamHandler: separate cache location management from serialization abstraction. Straightforward textgen process with TextFacility (passing Lists with internal structures, duplicating boolean arguments, etc here and there in favor more oo approach).
  TextGen make facet adopts new approach, and dumps debug printouts nobody cared about anyway.
Regenerate due to modified dependencies of lang.core
NPE for create rule, in-place and incremental generation
Fix stale code in MPS as Idea plugin