bump to v2.3.2

bump to version 2.3.1

removed old merged version of WALA

HashTree refactoring

- config moved to TreeConfig class
- added setter for tree config

HashTree refactoring

- config moved to TreeConfig class
- added setter for tree config

New Library API analysis

- parses library jar|aar files directly
- improved public interface extractor
- json export of analysis results per lib

New major version including new functionality, improved precision and…

… updated lib profiles