Feature: Album download

[RobertSasak]

gonic version: v0.16.4

Gonic currently implements download.view the same as stream. This works ok for downloading songs. However it throw an error when dowloading and album. This can be easily trigger by clicking on download arrow in Jamstash.

//cb( // commented out to get nice syntax highlight
{
  subsonic-response: {
  status: "failed",
  version: "1.15.0",
  type: "gonic",
  serverVersion: "0.16.4",
  openSubsonic: true,
  error: {
    code: 0,
      message: "error looking up id al-3312: not found"
    }
  }
}
//)

As this is not a very important feature I want to just note it for everybody else.