Build schedule of ovirt-appliance_ovirt-3.6_build-artifacts-el7-x86_64

Hey Ryan & Tolik, could you change the build schedule of the following to jobs to be built on a weekly basis? ovirt-appliance_ovirt-3.6_build-artifacts-el7-x86_64 ovirt-appliance_ovirt-master_build-artifacts-el7-x86_64 Currently they are just triggered manually, but we should have regular updates to ensure that we get some platform updates into the images. Thanks fabian