* supressed warnings
+ added Class SimilarityCalc
* small changes in class MiniRetrieve
* worked on class SimilarityThesaurusBasic - not done yet -> probably never gets finished
included some good concepts
+ class SimilarityThesaurusEnhanced
* small changes in class SimilarityThesaurusBasic (not working)
* recent changes
* fixed class SimilarityThesaurusEnhanced