Stop travis double-builds (#1142)
Stop travis double-builds (#1142)

Travis builds on PR and push, this changes it so it will only trigger the "PUSH" event on the master branch.
eileencodes/puma,looker/puma,unleashed/puma,looker/puma,prathamesh-sonpatki/puma,prathamesh-sonpatki/puma,looker/puma,unleashed/puma,respire/puma,looker/puma,respire/puma,puma/puma,puma/puma,puma/puma,eileencodes/puma,respire/puma,respire/puma,puma/puma,prathamesh-sonpatki/puma,eileencodes/puma,eileencodes/puma,unleashed/puma,prathamesh-sonpatki/puma,unleashed/puma