Offer my modifications to batch importer for 2.0.1

Things I've added:
Updates to allow compatibility with Neo4J 2.0.1
A maven repo on Github with my build
Improvements to code using Eclipse's compile checker (potential NPE fixes)
'Improvements' to code based on FindBugs analysis (Go Terps!).  The ugliest result of this was the Config object gets passed around a lot instead of mutating a static, but to me that just hints at the need for more refactoring.