Revert "Rails 4.0 is going to depend on Rack 1.5.x so let's test against Rack master"
Revert "Rails 4.0 is going to depend on Rack 1.5.x so let's test against Rack master"

This reverts commit fba97c9620e709f0449ea9f3240b9e5174f72e1e.

riseshia/railsguides.kr,BlakeWilliams/rails,tijwelch/rails,joonyou/rails,kamipo/rails,flanger001/rails,baerjam/rails,mechanicles/rails,arunagw/rails,rossta/rails,marklocklear/rails,assain/rails,hanystudy/rails,kamipo/rails,koic/rails,yhirano55/rails,illacceptanything/illacceptanything,felipecvo/rails,riseshia/railsguides.kr,schuetzm/rails,yahonda/rails,shioyama/rails,MSP-Greg/rails,ngpestelos/rails,joonyou/rails,mohitnatoo/rails,kddeisz/rails,kmcphillips/rails,starknx/rails,utilum/rails,rafaelfranca/omg-rails,mtsmfm/rails,tgxworld/rails,rails/rails,felipecvo/rails,eileencodes/rails,mathieujobin/reduced-rails-for-travis,pvalena/rails,baerjam/rails,odedniv/rails,illacceptanything/illacceptanything,betesh/rails,richseviora/rails,88rabbit/newRails,BlakeWilliams/rails,lucasmazza/rails,voray/rails,felipecvo/rails,illacceptanything/illacceptanything,samphilipd/rails,georgeclaghorn/rails,vipulnsward/rails,amoody2108/TechForJustice,rafaelfranca/omg-rails,rafaelfranca/omg-rails,mtsmfm/railstest,gfvcastro/rails,Stellenticket/rails,sealocal/rails,mechanicles/rails,coreyward/rails,Envek/rails,fabianoleittes/rails,mechanicles/rails,maicher/rails,ttanimichi/rails,Vasfed/rails,kmcphillips/rails,arunagw/rails,starknx/rails,rossta/rails,fabianoleittes/rails,illacceptanything/illacceptanything,bradleypriest/rails,kmayer/rails,yhirano55/rails,illacceptanything/illacceptanything,Edouard-chin/rails,kaspth/rails,eileencodes/rails,marklocklear/rails,Envek/rails,Erol/rails,assain/rails,travisofthenorth/rails,shioyama/rails,gfvcastro/rails,mijoharas/rails,mohitnatoo/rails,notapatch/rails,tjschuck/rails,prathamesh-sonpatki/rails,untidy-hair/rails,sergey-alekseev/rails,gfvcastro/rails,yasslab/railsguides.jp,tgxworld/rails,shioyama/rails,yalab/rails,EmmaB/rails-1,tjschuck/rails,vassilevsky/rails,Spin42/rails,rbhitchcock/rails,betesh/rails,aditya-kapoor/rails,voray/rails,Edouard-chin/rails,flanger001/rails,Envek/rails,pvalena/rails,jeremy/rails,Vasfed/rails,vassilevsky/rails,samphilipd/rails,shioyama/rails,travisofthenorth/rails,untidy-hair/rails,yalab/rails,richseviora/rails,lcreid/rails,illacceptanything/illacceptanything,brchristian/rails,tjschuck/rails,sergey-alekseev/rails,ttanimichi/rails,gauravtiwari/rails,aditya-kapoor/rails,yhirano55/rails,pschambacher/rails,kachick/rails,MSP-Greg/rails,kddeisz/rails,samphilipd/rails,utilum/rails,elfassy/rails,MichaelSp/rails,xlymian/rails,pschambacher/rails,repinel/rails,Erol/rails,printercu/rails,gauravtiwari/rails,iainbeeston/rails,mtsmfm/railstest,joonyou/rails,untidy-hair/rails,mathieujobin/reduced-rails-for-travis,Spin42/rails,jeremy/rails,yalab/rails,MSP-Greg/rails,kenta-s/rails,yawboakye/rails,stefanmb/rails,printercu/rails,deraru/rails,ttanimichi/rails,aditya-kapoor/rails,notapatch/rails,voray/rails,mtsmfm/railstest,koic/rails,sealocal/rails,iainbeeston/rails,Stellenticket/rails,schuetzm/rails,Sen-Zhang/rails,baerjam/rails,MSP-Greg/rails,palkan/rails,rbhitchcock/rails,sergey-alekseev/rails,ledestin/rails,bolek/rails,mathieujobin/reduced-rails-for-travis,hanystudy/rails,matrinox/rails,rails/rails,prathamesh-sonpatki/rails,notapatch/rails,kenta-s/rails,lucasmazza/rails,notapatch/rails,riseshia/railsguides.kr,coreyward/rails,repinel/rails,vipulnsward/rails,deraru/rails,pvalena/rails,vipulnsward/rails,kirs/rails-1,illacceptanything/illacceptanything,MichaelSp/rails,schuetzm/rails,arjes/rails,mijoharas/rails,prathamesh-sonpatki/rails,assain/rails,mijoharas/rails,bradleypriest/rails,esparta/rails,gcourtemanche/rails,utilum/rails,mtsmfm/rails,joonyou/rails,rbhitchcock/rails,palkan/rails,tijwelch/rails,yawboakye/rails,kmayer/rails,kaspth/rails,Sen-Zhang/rails,alecspopa/rails,bogdanvlviv/rails,georgeclaghorn/rails,kmayer/rails,kaspth/rails,yahonda/rails,Vasfed/rails,pschambacher/rails,kachick/rails,ngpestelos/rails,yasslab/railsguides.jp,gavingmiller/rails,gcourtemanche/rails,kirs/rails-1,printercu/rails,kirs/rails-1,palkan/rails,gfvcastro/rails,utilum/rails,elfassy/rails,tgxworld/rails,Erol/rails,Vasfed/rails,maicher/rails,illacceptanything/illacceptanything,arjes/rails,esparta/rails,yawboakye/rails,betesh/rails,arunagw/rails,brchristian/rails,deraru/rails,mtsmfm/rails,starknx/rails,palkan/rails,kachick/rails,eileencodes/rails,kddeisz/rails,odedniv/rails,brchristian/rails,marklocklear/rails,printercu/rails,schuetzm/rails,yasslab/railsguides.jp,jeremy/rails,esparta/rails,repinel/rails,georgeclaghorn/rails,travisofthenorth/rails,koic/rails,bradleypriest/rails,stefanmb/rails,Edouard-chin/rails,BlakeWilliams/rails,amoody2108/TechForJustice,tgxworld/rails,yhirano55/rails,eileencodes/rails,rossta/rails,richseviora/rails,illacceptanything/illacceptanything,amoody2108/TechForJustice,Stellenticket/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,gcourtemanche/rails,prathamesh-sonpatki/rails,lucasmazza/rails,flanger001/rails,fabianoleittes/rails,yasslab/railsguides.jp,MichaelSp/rails,xlymian/rails,gavingmiller/rails,alecspopa/rails,EmmaB/rails-1,mohitnatoo/rails,Stellenticket/rails,matrinox/rails,georgeclaghorn/rails,baerjam/rails,Edouard-chin/rails,pvalena/rails,ledestin/rails,betesh/rails,bolek/rails,ngpestelos/rails,coreyward/rails,EmmaB/rails-1,bogdanvlviv/rails,Erol/rails,iainbeeston/rails,alecspopa/rails,yalab/rails,ledestin/rails,Envek/rails,bogdanvlviv/rails,88rabbit/newRails,vipulnsward/rails,stefanmb/rails,illacceptanything/illacceptanything,gauravtiwari/rails,mohitnatoo/rails,yahonda/rails,gavingmiller/rails,kmcphillips/rails,repinel/rails,esparta/rails,yawboakye/rails,Spin42/rails,BlakeWilliams/rails,bogdanvlviv/rails,matrinox/rails,lcreid/rails,tjschuck/rails,88rabbit/newRails,Sen-Zhang/rails,hanystudy/rails,kenta-s/rails,kddeisz/rails,jeremy/rails,untidy-hair/rails,aditya-kapoor/rails,kmcphillips/rails,maicher/rails,rails/rails,arjes/rails,elfassy/rails,arunagw/rails,assain/rails,illacceptanything/illacceptanything,lcreid/rails,illacceptanything/illacceptanything,deraru/rails,travisofthenorth/rails,riseshia/railsguides.kr,sealocal/rails,odedniv/rails,vassilevsky/rails,flanger001/rails,yahonda/rails,fabianoleittes/rails,xlymian/rails,kamipo/rails,lcreid/rails,iainbeeston/rails,rails/rails,mechanicles/rails,tijwelch/rails,bolek/rails,illacceptanything/illacceptanything