Fix .travis.yml configuration
Fix .travis.yml configuration

Thornith/DraggablePanel,qiwx2012/DraggablePanel,ppamorim/DraggablePanel,pedrovgs/DraggablePanel,SPBTV/DraggablePanel,FreeDao/DraggablePanel,hmit/DraggablePanel,hoangsondev/DraggablePanel,murat8505/DraggablePanel,frakc/DraggablePanel,Fiddl3/DraggablePanel,dfodor/DraggablePanel