Add travis_retry to curl calls
Add travis_retry to curl calls

deech/stack,AndrewRademacher/stack,juhp/stack,Blaisorblade/stack,mrkkrp/stack,anton-dessiatov/stack,narrative/stack,Heather/stack,deech/stack,phadej/stack,Fuuzetsu/stack,juhp/stack,narrative/stack,MichielDerhaeg/stack,sjakobi/stack,mrkkrp/stack,Blaisorblade/stack,anton-dessiatov/stack,martin-kolinek/stack,AndreasPK/stack,MichielDerhaeg/stack,sjakobi/stack,phadej/stack,AndreasPK/stack,AndrewRademacher/stack,martin-kolinek/stack,Fuuzetsu/stack,Heather/stack