* vdserver: add __FUNCTION__, __PRETTY_FUNCTION__ and __MODULE__ as keywords and primary expression
  * vdserver: add __parameters as specification in is-expression
  * keywords can now also be colored by adding them to the "Colored types"
  * after changing the "Colored types" the current editor did not update immediately
  * user type colorizer settings were forgotten after editing options
  * goto definition now falls back to JSON information if semantic analysis yields no result