Make more extensive request metadata available in batch requests.
Merge pull request #3405 from jakewins/2.1-batchfix

Make more extensive request metadata available in batch requests.
Merge branch '2.1-maint'

Conflicts:
	community/server/src/main/java/org/neo4j/server/rest/web/BatchOperationService.java
Merge pull request #3434 from jakewins/2.1-merge

2.1 merge