modified:   ../moofy/JsonServices/JsonServices.csproj
modified:   ../moofy/JsonServices/SongService.cs
new file:   ../moofy/JsonServices/Utils.cs
song errors are a-go.
Errors are set by static methods in the Utils class.
modified:   ../moofy/JsonServices/SongService.cs
modified:   ../moofy/JsonServices/Utils.cs