Arvados

For documentation purposes:

1. Needed to upgrade all the participant clusters' config (commits 95cf0b7..a7df00c@saltstack) to:
1.a. include all participant clusters in the RemoteClusters section
1.b. include the LoginCluster defined with only the cluster name (not the fqdn)

2. Run the migration scripts in jutro, following the directives in the link above:
2.a. exported my user token
2.b. run arv-federation-migrate --report users.csv
2.c. checked all the users to have a home host (jutro)
2.d. run arv-federation-migrate --dry-run users.csv
2.e. run arv-federation-migrate --migrate users.csv. It failed with a couple of users being admin in a cluster and not in the other, so I had to reconciliate that information in both clusters and re-run steps b to e untill all the users got correctly migrated.