Version 0.2.0 released

Changes:
- Added full text search functionalities.
- Custom similarity computation has been improved by replacing it with Lucene similarity computation (MoreLikeThis class).
- DAO methods to search efficiently by text.
- Modified class diagrams.
- Usability and performance improvements

Please check the wiki for details:
https://sourceforge.net/apps/mediawiki/scalaffinity/index.php?title=Main_Page