* all:
  - Fix error message.
* (aadlBaTest001.aadl):
  - Add property reference tests (as subprogram parameters).
* (AadlBaParserAction.java):
   - Fix null pointer exception when ba is not parsed (on syntax error).
* (AadlBaTypeChecker.java):
   - Remove obsolete comments.
* all:
  - Fix ba's parser : have forgotten the '-visitor' option when generating the parser.
* (aadlBaTest007.aadl):
   - Add a test.
* (aadlBaTest001.aadl):
   - Add prperty reference test.
* all:
  - Fix classifier property reference as subprogram parameter.