MONGOID-4211 Add documentation to new methods
MONGOID-4211 Add documentation to new methods

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