M10 - Add tabs functionality and preprocessing configurations.
M11 - Add menu with close and load options.
M12 - Add database scripts.
M13 - Add stop words file.
M14 - Modify texts in preprocessing.
M15 - Add enrichment form.
M16 - Forms refactoring.
M17 - Add database singleton and add text treatment form.
Merge pull request #6 from mss1982/master

M10 - Add tabs functionality and preprocessing configurations.