Updated the violin to use the new UI style and datum, and fixed a bunch of dialog updating bugs within. Fixed a couple buttons to work before song created, that should, such as import song. Changing tempo works more naturally now.
Merge branch 'master' of https://github.com/tgstation/-tg-station
Moved backend and UI functionality into the datum/song class and made in generalizable for special-case functionalities for player checks, etc
Merge branch 'master' of https://github.com/tgstation/-tg-station
Merge pull request #69 from Tastyfish/master

Violin & Piano UI Update