Merge pull request #1 from LO23/master

Update
different network listeners that are threads
commit intermediare networklistener
conflict resolution
[BitMusic][Network] Développement de la méthode notifyNewConnection(...)
[BitMusic][Network] Développement de la méthode notifyNewConnection(...)
[BitMusic][Network] Développement de la méthode notifyNewConnection(...)
added "bitmusic." in User class to stop compilation error
Merge origin/master
commented the body of searchSongsByUser - waiting for implementation from network.api.ApiMusicImpl
pausing the implementation of getSongsByUser - waiting for song.getLightSong() from Thomas
Revert "pausing the implementation of getSongsByUser - waiting for song.getLightSong() from Thomas"

This reverts commit 2aa319c72407ce6cc884d238cd2d9eb575a2fcdb.
Merge origin/master
implemented getSongsByUser
Merge pull request #70 from seffarmo/master

[music] Add public in songlibrary constructor
Merge origin/master
finished getSongsByUser
reverted changes in User
Merge pull request #71 from amina196/master

[music] implementation of SongSearcher.getSongsByUser