mongoid/origin — pull request #81 by arthurnn (2013-05-09 17:14:22+00:00)
Title: adding support for $geoWithin

Replacing $within with $geoWithin as in mongodb2.4 $within was deprecated.
geoWithin docs: http://docs.mongodb.org/manual/reference/operator/geoWithin/
[related mongoid/moped#193]