add travis.
add travis.

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