Massive refactor for class names;
Fixing creating instance of UserEntry and GroupEntry classes;
Final preporations for message classes;
Refactor and splitCsv() method added;
Message properties creation and reading fixes;
Fix for tag csv representation;
Fixing multiplie message properties reading;
Copyright and license information modification;
Fix some DirEntry fields and methods to protected;
Deletion of dummy folders creation dialog in DirEntry constructor;
New constructor added (Message from MessageEntry);
New method CsvFormat.renderCommonLine;
Doc review;
Fix DirEntry access inheritance;
Fix for Message constructor through MessageEntry;
Provide new MessageProperty type system;
Fix MessageProperty CSV representation and small refactoring of type system;
Add COPYRIGHT message property type;
README update;
Old code cleanup;