added acceptedResourceRoles for marathon v0.9.0+
added acceptedResourceRoles for marathon v0.9.0+

juliendsv/go-marathon,kesselborn/go-marathon,Raffo/go-marathon,iandyh/go-marathon,matt-deboer/go-marathon,Mongey/go-marathon,gambol99/go-marathon,juliendsv/go-marathon,timoreimann/go-marathon,kulikov/go-marathon