[paypal pro] add travis yaml config.
[paypal pro] add travis yaml config.

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