- JaninoEvaluator stops itself after several errors

- corrected a hard to spot bug in AbstractEvaluatorFilter. It has methods like
  
  public int getOnMatch()
  public void setOnMatch(String)

  public int getOnMismatch()
  public void setOnMismatch(String)

The fact that the getter returned an int and the setter took a String has PropertySetter confused.
I removed the getOn*match methods which were not used anywhere.