fix song search in wishes
delete comment
delete song fix condition
Fix recommended songs in wishes to public only
Share song, Find user by username when sharing, send notification
Share songbook, send notification, fix message when sharing song, display shared song/songbook
Fix sharing in making/displaying rating/comments, only owner can share songs/songbooks
read shared songs and songbooks
search in public songs
add: include tags in readAll method
add notification when someone take user's song
downgrade to PHP 5.4