Added docs for no_dereference and scalar (#68)
Added docs for no_dereference and scalar (#68)

larsbutler/mongoengine,sourcelair/mongoengine,closeio/mongoengine,eli-b/mongoengine,ConsumerPhysics/mongoengine,iandd0824/mongoengine,WingGao/mongoengine,9nix00/mongoengine,yarneo/mongoengine,touilleMan/mongoengine,jimmyshen/mongoengine,gmacon/mongoengine,RussellLuo/mongoengine,Catstyle/mongoengine,DavidBord/mongoengine,noirbizarre/mongoengine,cogniteev/mongoengine,nicolascine/mongoengine,blaggacao/mongoengine,MakerReduxCorp/mongoengine,starsirius/mongoengine,MRigal/mongoengine,MongoEngine/mongoengine,cogniteev/mongoengine,gavincabbage/mongoengine,reallistic/mongoengine,Davidrjx/mongoengine,muhammad-ammar/mongoengine,prijindal/mongoengine,MakerReduxCorp/mongoengine,losintikfos/mongoengine,ms5/mongoengine,Multiposting/mongoengine,ProgressivePlanning/mongoengine,Davidrjx/mongoengine,nathanial/mongoengine,khallaghi/mongoengine,elephanter/mongoengine