Added fixes from Astynax until with PR is ACKED and released

https://github.com/Netflix/astyanax/pull/444
Fixes all tests and refactors common astyanax utilities
Refactored scope to not include collection name.  That is a collection specific feature that doesn't apply to graphs and other functionalities that still require scope
Added OrganizationScope as our default scope for both graph and collections

Updated Validation

Created an example of how we can map collection scopes into the graph
Updated interfaces to allow meta data retrieval of the graph.
removing perftest and adding in-project repository for modified dependencies