Update .travis.yml to test all branches
Update .travis.yml to test all branches

dipeshtech/TextBlob,laugustyniak/TextBlob,jcalbert/TextBlob,jonmcoe/TextBlob,sargam111/python,IrisSteenhout/TextBlob,adelq/TextBlob,nvoron23/TextBlob,sloria/TextBlob,Windy-Ground/TextBlob,freakynit/TextBlob,beni55/TextBlob