Use __unicode__ representation in Field and Concept templates
Use __unicode__ representation in Field and Concept templates

This pushes down the logic of choosing a name down to Avocado.

Signed-off-by: Byron Ruth <e9d71f5ee7c92d6dc9e92ffdad17b8bd49418f98@devel.io>

rv816/serrano_night,chop-dbhi/serrano,rv816/serrano_night,chop-dbhi/serrano