Regenerate gemspec in preparation for 0.4.1 release
Regenerate gemspec in preparation for 0.4.1 release

mongoid/mongoid-history,getaroom/mongoid-history,mateuspontes/mongoid-history,dblock/mongoid-history,aq1018/mongoid-history,Yakrware/mongoid-history,stephenhmarsh/mongoid-history,sivagollapalli/mongoid-history