Add top level license
Add top level license

- Add top level license file so that github auto detects the license type
- and displays it in the repository overview section
- More info at https://github.com/blog/2252-license-now-displayed-on-repository-overview

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