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.
Added support for reading CSV header from separate file

and support for having multiple files look like one CharSeeker. There's
also a clearer separation of concerns between, Readable and CharSeeker and
where they are instantiated.
Merge pull request #3361 from tinwelint/2.2-bip-csv-header-in-separate-file

Added support for reading CSV header from separate file
Fixed bug in encoding short strings
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'
Remove code that flushes the schema state if there are more than 10_000 updates