[klarna] add travis yaml
[klarna] add travis yaml

fullpipe/Payum,StoreFactory/Payum,StoreFactory/Payum,staabm/Payum,ASKozienko/Payum,formapro-forks/Payum,Payum/Payum,fullpipe/Payum,StoreFactory/Payum,aitboudad/Payum,Payum/Payum,formapro-forks/Payum,digisec/Payum,digisec/Payum