removed default Formatter in logger, not needed with 1.8.7 upwards
removed default Formatter in logger, not needed with 1.8.7 upwards

Signed-off-by: José Valim <0c2436ea76ed86e37cc05f66dea18d48ef390882@gmail.com>

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