Manually convert apache Configuration object to Map for Neo4jHA.

The apache converter was being a little too smart and convering comma separated property values to List.
Add test for PartitionGraph issue.

If a partition only holds an edge and the vertices are in separate partitions what happens when one of the vertex partitions is removed?  right now it ignores the partition and returns the vertex.
fixed vertex accessing via an edge when incident vertices are not in the correct partition. Fixed #452
fixed vertex accessing via an edge when incident vertices are not in the correct partition.
Update OrientDB version in order to compile 

Since that the version 2.0-SNAPSHOT is not available, the last available version (1.6.2) is required to compile. This pull request is a replacement for the wrong #454.
Merge pull request #455 from mikedias/patch-1

Update OrientDB version in order to compile
Merge branch 'master' of https://github.com/orientechnologies/blueprints
Upgraded to OrientDB 1.6.3