Build Lister: order_by default value set to date_scheduled
Remove old `gmt capture germline-model-group-restart` command.
Build CLI Lister: use created_at as default order by
Merge pull request #152 from ebelter/build-lister-by-date-sheduled

Build Lister: order_by default value set to date_scheduled
Merge pull request #154 from tmooney/remove_modelgroup_restart

Remove old `gmt capture germline-model-group-restart` command.