(tasks) Add notifications to manage progress bars
(searchtask) Implements progression notification
(gui) Display the progress bar while searching
(core) Fix a bug with file basenames

"Radioslave - N.i.n.a. (Original Mix).flac".baseName == "Radioslave - N"
"Radioslave - N.i.n.a. (Original Mix).flac".completeBaseName == "Radioslave - N.i.n.a. (Original Mix)"
(search) Do not delete some special chars before searching
Update README and CHANGES
Update software version