reference actual class to use middleware
reference actual class to use middleware

Using strings for middleware class names is deprecated in 83b767cef90abfc4c2ee9f4b451b0215501fae9a.

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