music: remove classes which should belong to server
music: talk to DRB to retrive song list
music: use taglib instead of mp3-tag
music: use ActiveModel::Model instead of its module, this is rails 4
music: use activerecord-tableless instead of ActiveModel for association support
music: load activerecord-tableless gem
music: write tags and return status
music: move scan and write view outside index
music: record drb server for user
music: drb_server object
music: user model
music: authorization to use drb_server controller
music: stream and play songs
music: hack to fix edit path
music: use drb_server info from user
music: remove unused teplates
music: allow scrolling if content is more than screen size