update_json: make it possible to set default host
update_json: make it possible to set default host

to pull the json info from.

Signed-off-by: Mattias Ryrlén <4587a8f94d8e5d4e64617273c61a60c426f9ddf7@op5.com>

hema-tournament-manager/htm,hema-tournament-manager/htm,hema-tournament-manager/htm