Add infos for each entries & improve code
2012/08/12 : Version 0.2.2
Improve code. Reformat labels hierarchy to help traductor work.
2012/07/21 : Version 0.2.0
Allow add and delete datas (Title, enterprise, publication and begin dates).
2012/07/14 : Version 0.01.
First GUI for the program. Allow add datas, but not yet delete entries.