Increment the version on the CRDs #753
Description
Right now our CRDs are at v1 and haven't changed in a breaking way since they were introduced. However we are now at the point where we might want to start changing things (see #745). We should probably bump our CRDs to v2beta1 following the k8s convention which would allow us to change things without breaking older code.
Given that we haven't been through this process yet we should take some time to learn and understand how to do this safely.