Change visitor return value behaviour, so that it is consistent in all uses (false means continue)
Introduce checksum on ephemeral filesystem, primarily to be able to compare snapshots.

Formatting according to new template.
Merge pull request #3357 from rickardoberg/visitorfix

Change visitor return value behaviour
Order the locking of nodes when creating a relationship.
Merge pull request #3369 from jakewins/2.1-rellockorder

Order the locking of nodes when creating a relationship.
Merge branch '2.1-maint'
Instructions on HA master-client push-pull configs
Some small grammar fixes in the docs