Added support for NotFoundRoute
Added support for NotFoundRoute

chiedo/gatsby,Syncano/gatsby,Khaledgarbaya/gatsby,fk/gatsby,chiedo/gatsby,rothfels/gatsby,fabrictech/gatsby,mickeyreiss/gatsby,Khaledgarbaya/gatsby,danielfarrell/gatsby,danielfarrell/gatsby,gatsbyjs/gatsby,Khaledgarbaya/gatsby,fk/gatsby,gesposito/gatsby,okcoker/gatsby,mickeyreiss/gatsby,mingaldrichgan/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,0x80/gatsby,fabrictech/gatsby,okcoker/gatsby,gatsbyjs/gatsby,gesposito/gatsby,fk/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,0x80/gatsby,chiedo/gatsby,ChristopherBiscardi/gatsby,rothfels/gatsby,mingaldrichgan/gatsby,0x80/gatsby,mingaldrichgan/gatsby,mickeyreiss/gatsby,fabrictech/gatsby,ChristopherBiscardi/gatsby,okcoker/gatsby,danielfarrell/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby