Add all_ordered_branches, and update backup and fetch to use it.
Add all_ordered_branches, and update backup and fetch to use it.

MaximilianMeister/crowbar,dirkmueller/crowbar,SUSE-Cloud/crowbar,rhafer/crowbar,mmnelemane/crowbar,tserong/crowbar,SUSE-Cloud/crowbar,rsalevsky/crowbar,crowbar/crowbar,rhafer/crowbar,tserong/crowbar,aplanas/crowbar,MaximilianMeister/crowbar,rhafer/crowbar,toabctl/crowbar,aspiers/crowbar,nkrinner/crowbar,toabctl/crowbar,dirkmueller/crowbar,aplanas/crowbar,vwallfahrer/crowbar,nkrinner/crowbar,vwallfahrer/crowbar,aspiers/crowbar,rsalevsky/crowbar,crowbar/crowbar,mmnelemane/crowbar