Fix Travis CI configuration
Fix Travis CI configuration

- Switch to Node-based builds
- Add Node 0.11 build

bluenergy/cucumber-js,i-e-b/cucumber-js,eddieloeffen/cucumber-js,cucumber/cucumber-js,SierraGolf/cucumber-js,mhoyer/cucumber-js,arty-name/cucumber-js,gnikhil2/cucumber-js,MinMat/cucumber-js,h2non/cucumber-js,mhoyer/cucumber-js,marnen/cucumber-js,richardmcsong/cucumber-js,i-e-b/cucumber-js,mhoyer/cucumber-js,marnen/cucumber-js,bluenergy/cucumber-js,vilmysj/cucumber-js,gnikhil2/cucumber-js,h2non/cucumber-js,arty-name/cucumber-js,Telogical/CucumberJS,marnen/cucumber-js,AbraaoAlves/cucumber-js,richardmcsong/cucumber-js,h2non/cucumber-js,karthiktv006/cucumber-js,vilmysj/cucumber-js,MinMat/cucumber-js,cucumber/cucumber-js,MinMat/cucumber-js,SierraGolf/cucumber-js,vilmysj/cucumber-js,cucumber/cucumber-js,karthiktv006/cucumber-js,Telogical/CucumberJS,AbraaoAlves/cucumber-js,gnikhil2/cucumber-js,eddieloeffen/cucumber-js,bluenergy/cucumber-js,richardmcsong/cucumber-js,AbraaoAlves/cucumber-js,SierraGolf/cucumber-js,eddieloeffen/cucumber-js,arty-name/cucumber-js