Add FileInputStream helper functions to GraphMLReader
Add FileOutputStream helper functions to GraphMLWriter
Add FileInputStream helper functions to GMLReader
Add FileOutputStream helper functions to GMLWriter
Add FileInputStream helper functions to GraphSONReader
Add FileOutputStream helper functions to GraphSONWriter
Merge pull request #351 from asaf/exposegraphsonutility

Remove the final keyword from GraphSONUtility.
Compatibility with Java 5
This is required in order to make it easier to extend some blueprints interfaces. Notably com.tinkerpop.blueprints.Index. The parameterized type <T extends Element> necessitates that OrientElement be public.
Merge pull request #352 from simonbrandhof/master

Compatibility with Java 5
Merge remote-tracking branch 'xhochy/feature/outputGraphFile'
Merge remote-tracking branch 'origin/master'
Merge pull request #353 from pietermartin/orientelement

OrientElement class scope public
make rollback check the status of the transaction before rolling back
Bumping java back to 1.6.

We went to 1.5 recently because we assymed that we weren't using 1.6 features anywhere, but that wasn't really true as the @Override annotation was being used in a 1.6 way.
Merge remote-tracking branch 'pietermartin/neo4j-rollback'
small tweak to test case to ensure proper deleting of tempory directory.
Fix bug in OrientGraph.getVertices #348
Travis was timing out on dependencies
added Element.remove() and Vertex.addEdge(Vertex,String). Easy for all implementations. Hard for wrappers. Lots of Wrapper code changed.