It may be past its sell-by date, but for many Danes it’s a tasty proposition: a supermarket in Copenhagen selling surplus food has proved so popular it has now opened a second store. After launching in the district of Amager earlier this year, the Wefood project drew a long line as it opened a second branch in the trendy neighbourhood of Nørrebro, this month. “It’s awesome that instead of throwing things out they are choosing…