Use `language: rust` in .travis.yml
Use `language: rust` in .travis.yml

alexcrichton/gfx,sectopod/gfx-rs,ColinKinloch/gfx,tempbottle/gfx,Bastacyclop/gfx,ColinKinloch/gfx,mitchmindtree/gfx-rs,JohnColanduoni/gfx,bvssvni/gfx-rs,tanderegg/gfx,JohnColanduoni/gfx,aepsil0n/gfx-rs,davll/gfx,gfx-rs/gfx-rs,tanderegg/gfx,red75prime/gfx