MONGOID-3073 Show that providing an array of Hashes to #add_to_set works
MONGOID-3073 Show that providing an array of Hashes to #add_to_set works

mongodb/mongoid,Welovroi/mongoid,nviennot/mongoid,drobune/mongoid,jbrien/mongoid,kay-kim/mongoid,jbrien/mongoid,herimedia/mongoid,estolfo/mongoid,Azzurrio/mongoid,tzar/mongoid,uniiverse/mongoid,nicolasblanco/mongoid,narutosanjiv/mongoid,bjori/mongoid,Welovroi/mongoid,joshsoftware/mongoid,nviennot/mongoid,rinmu/mongoid,mongodb/mongoid,joshsoftware/mongoid,bjori/mongoid,uniiverse/mongoid,mongodb/mongoid,tzar/mongoid,Azzurrio/mongoid,Sharevari-Inc/mongoid,Sharevari-Inc/mongoid,Zhomart/mongoid,rinmu/mongoid,mysociety/mongoid,Zhomart/mongoid,jonhyman/mongoid,mysociety/mongoid,herimedia/mongoid,jonhyman/mongoid,estolfo/mongoid,drobune/mongoid,kay-kim/mongoid,narutosanjiv/mongoid