Player returns 'Nothing playing' when there is

[jonashcroft]

Issue

• Scenario is that music is playing on Spotify
• Nowify is authorised, connected, but returning a 'Nothing is playing'
• Network requests show that a 204 is being returned
• Investigation shows that a '204 No Content' is returned
• The app sees a successful response but doesn't notify you of 'No content'

Solution

• Seems like can happen when the actual Spotify Player version is out-of-date
• Consider adding a solution to display a message when 'No content' is returned.