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
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:vsu/blueprints
Rename TinkerFile to TinkerStorage

Utilize TinkerStorage for TinkerGraph graph loads and saves