neo4j/neo4j — pull request #3567 by chrisvest (2014-11-28 10:49:37+00:00)
Title: Cope better when asking import-tool to import empty files

* ImportTool now no longer prints a big stack trace (by default) when asked to import empty files.
* Add a new --stacktrace command line option that can enable printing of stack
traces for those who want to debug things.
* The Thread created by the ThreadReadaheadReadable has been made daemon so it
no longer prevents a shut down of the importer process.
* Panics in the import pipeline now preserve exception messages when wrapping
causes.