tbpro/mongoid_userstamp — pull request #4 by johnnyshields (2013-03-19 15:51:36+00:00)
Title: Changed all gems to use greater than (>=) rather than requiring minor version (~>)

Current gem throws a gem conflict error with the latest Mongoid (3.1.x)

Regenerated gemspec with jeweler

Did the same for development gems as well--it's good practice to keep these current.