Assume http if not specified when providing FQDN as arg to omnibus install
Per demo Sid did of Geo earlier today where he started by installing using Omnibus, see notes in https://docs.google.com/document/d/1-93kEWlL5npXcrgS1moEkzSwkUODVLpN4C6KC_S7YFM/edit or https://youtu.be/eLu1SHlzgFM?t=873 to see the point in the demo where this came up.
Since we only allow http://
, can it be made default when the user does not specify?