Minor cleanup in neo4j-server.properties
Remove 'additional jvm args' echo from startup script
Forced consideration of long chain, expands only, plan in the query plan solver
Remove the MaxDirectMemory setting from wrapper.conf

It was added as part of implementing the StandardPageCache, which has since been removed.
Also added a headline to the system property group.
Allows to only import nodes without any relationships

For this occasion InputNode ids are allowed to be null, meaning that
such nodes are anonymous and cannot be found when creating relationships
later on in the import. Also the :ID header entry in CSV input is now
optional and if the :ID header entry is present nodes can leave out value
in that column to have such nodes be anonymous.
Rename counts store files from 'neostore.counts.db.{alpha,beta}' -> 'neo.store.counts.db.{a,b}'

- improved error and log messages by referring to file names when speaking about a specific counts store file
Ability to keep ids as properties on nodes

If the :ID header is named, e.g. myId:ID in a CSV input, then each node
having an id in that field will also have that value stored as a property
with the name of the header entry, in this case "myId".
Merge pull request #3595 from chrisvest/2.2-wrapper-conf

Remove the MaxDirectMemory setting from wrapper.conf
Merge pull request #3592 from craigtaverner/ronja_with_expand_only

Forced consideration of long chain, expands only, plan in the query plan...
Merge pull request #3596 from davidegrohmann/2.2-rename-counts-store-files

Rename counts store files
Merge pull request #3544 from tinwelint/2.2-bip-flexible-id-management

More flexible handling of node ids during import
Merge pull request #3583 from jakewins/2.2-packagefixes

2.2 packagefixes
Fixed failing test.
Merge remote-tracking branch 'upstream/2.1-maint'

Conflicts:
	community/cypher/cypher/src/test/scala/org/neo4j/cypher/MatchAcceptanceTest.scala
Initial processor assignment happens almost immediately instead of waiting for a specific number of done batches
Unignore varlength tests
Refactoring of how logical plans for expanding into an existing identifier is handled
Fixes cardinality estimation problems around LIMIT
Reenable ignored cypher index usage acceptance test
Merge pull request #3580 from systay/expand-plan-refactoring

Expand plan refactoring