Pin i18n to 0.6.x in parallel specs.
Pin i18n to 0.6.x in parallel specs.

This should fix the build on Ruby 1.8.7.

Elffers/bundler,dilumnavanjana/bundler,zhangkuaiji/bundler,Teino1978-Corp/Teino1978-Corp-bundler,cdwort/bundler,asymmetric/bundler,chef/bundler,davydovanton/bundler,suhastech/bundler,gregkare/bundler,bundler/bundler,mpapis/bundler,pivotal-cf-experimental/bundler,chulkilee/bundler,ximus/bundler,zhangkuaiji/bundler,cdwort/bundler,ligi/bundler,Wirachmat/bundler,chulkilee/bundler,schaary/bundler,christer155/bundler,ngpestelos/bundler,EthanK28/bundler,masarakki/bundler,wenderjean/bundler,seanlinsley/bundler,wenderjean/bundler,steved/bundler,CorainChicago/bundler,sideci-sample/sideci-sample-bundler,neslom/bundler,jasonkarns/bundler,Elffers/bundler,davydovanton/bundler,anil826/bundler,elovelan/bundler,smlance/bundler,joshsoftware/bundler,asutoshpalai/bundler,mdorrance/bundler,jingweno/bundler,Teino1978-Corp/Teino1978-Corp-bundler,jingweno/bundler,Eric-Guo/bundler,kohgpat/bundler,ipmobiletech/bundler,seanlinsley/bundler,byroot/bundler,nju520/bundler,lmtim/bundler,byroot/bundler,elovelan/bundler,frsyuki/bundler,neslom/bundler,ngpestelos/bundler,agis-/bundler,pivotal-cf-experimental/bundler,PG-kura/bundler,smlance/bundler,Wirachmat/bundler,dilumnavanjana/bundler,Eric-Guo/bundler,robinboening/bundler,RochesterinNYC/bundler,AiyionPrime/bundler,bronzdoc/bundler,mvz/bundler,nju520/bundler,mpapis/bundler,schaary/bundler,patvice/bundler,bundler/bundler,chef/bundler,steved/bundler,christer155/bundler,carpodaster/bundler,carpodaster/bundler,sideci-sample/sideci-sample-bundler,tgxworld/bundler,ipmobiletech/bundler,ximus/bundler,mvz/bundler,philnash/bundler,mattbrictson/bundler-1,simplybusiness/bundler,asutoshpalai/bundler,tgxworld/bundler,TimMoore/bundler,EthanK28/bundler,PG-kura/bundler,danimashu/bundler,simplybusiness/bundler,ligi/bundler,kohgpat/bundler,joshsoftware/bundler,masarakki/bundler,cstrahan/bundler,RochesterinNYC/bundler,mdorrance/bundler,h4ck3rm1k3/bundler,agis-/bundler,bronzdoc/bundler,jaym/bundler,EasonYi/bundler,roseweixel/bundler,robinboening/bundler,suhastech/bundler,patvice/bundler,pjump/bundler,gregkare/bundler,philnash/bundler,jaym/bundler,danimashu/bundler,pjump/bundler,asymmetric/bundler,EasonYi/bundler,anil826/bundler,roseweixel/bundler,TimMoore/bundler,mattbrictson/bundler-1,jasonkarns/bundler,CorainChicago/bundler,lmtim/bundler,cstrahan/bundler,h4ck3rm1k3/bundler,AiyionPrime/bundler,frsyuki/bundler