Update Travis CI config for Grunt 0.4
Update Travis CI config for Grunt 0.4

johan--/fuelux,Jchavez/fuelux,interactivellama/fuelux,ASlave2Audio/fuelux,cormacmccarthy/fuelux,chriscorwin/fuelux,simonfork/fuelux,dram1008/fuelux,rbmoore/fuelux,dram1008/fuelux,wakermahmud/fuelux,itstar4tech/fuelux,wakermahmud/fuelux,afz/fuelux,marcostomazini/fuelux,jasondavis/fuelux,dwaltz/fuelux,BenjaminNeilDavis/fuelux,simonfork/fuelux,kinghigh/bootstrap,glizer/fuelux,GabrielApG/FueLux-Elements,Jchavez/fuelux,fdumpling/fuelux,glizer/fuelux,futuremint/fuelux,rbmoore/fuelux,swilliamset/fuelux,cormacmccarthy/fuelux,oglandx/fuelux,itstar4tech/fuelux,erpframework/fuelux,oglandx/fuelux,vernak2539/fuelux,jasondavis/fuelux,futuremint/fuelux,swilliamset/fuelux,johan--/fuelux,fdumpling/fuelux,stevewithington/fuelux,imshibaji/fuelux,wakermahmud/fuelux,dwaltz/fuelux,tweettypography/fuelux,chriscorwin/fuelux,imshibaji/fuelux,afz/fuelux,simonfork/fuelux,erpframework/fuelux,ExactTarget/fuelux,marcostomazini/fuelux,tweettypography/fuelux,ExactTarget/fuelux,GabrielApG/FueLux-Elements,erpframework/fuelux,stevewithington/fuelux,vernak2539/fuelux,ASlave2Audio/fuelux,BenjaminNeilDavis/fuelux