MONGOID-4326 Add test for collation for map reduce
MONGOID-4326 Add test for collation for map reduce

jonhyman/mongoid,Welovroi/mongoid,Welovroi/mongoid,jonhyman/mongoid,kay-kim/mongoid,mongodb/mongoid,nviennot/mongoid,Sharevari-Inc/mongoid,kay-kim/mongoid,mongodb/mongoid,Sharevari-Inc/mongoid,mongodb/mongoid,herimedia/mongoid,nviennot/mongoid,herimedia/mongoid