Updated .travis.yml file
Updated .travis.yml file

- most up-to-date version of our config

TryGhost/Casper,matitalatina/Casper,Inchdev/blog-theme,jedidja/Casper,Inchdev/blog-theme,alvareztech/Casper,alvareztech/Casper,eduardochiaro/Casper-Light,jedidja/Casper,dlew/Casper,russmckendrick/Casper,ImKcat/ImKcatCasper,eduardochiaro/Casper-Light,matitalatina/Casper