murdos/musicbrainz-userscripts — pull request #2 by VxJasonxV (2012-12-12 11:19:46+00:00)
Title: Support singles when not part of a parent album

These changes allow singles that aren't attached to an album to be imported, setting the 'single' release type as necessary (which has to be modified from 'track'.

Examples:

* [Chipwrecked](http://rainbowdragoneyes.bandcamp.com/track/chipwrecked) should show a button, and import as a Single (new behavior).
* [111111](http://rainbowdragoneyes.bandcamp.com/album/111111) should show a button, and import as an Album (normal behavior).
* [Seize My Day](http://rainbowdragoneyes.bandcamp.com/track/seize-my-day) should NOT show a button (expected behavior).