More information in the case of an invalid offset
Merge branch '1.9-maint' into 2.0-merge-1.9

Conflicts:
	community/kernel/src/main/java/org/neo4j/kernel/impl/nioneo/store/Buffer.java
Merge pull request #2082 from tinwelint/2.0-merge-1.9

2.0 merge 1.9