Updated exlager to deal with deprecated elxir function
Converted application to support Elixir v0.11
update_buckets methods for vnode manifest
Modernized configuration to use mix.exs
Guarded Config.get should occur prior to generic
Exchange @doc for naked documentation for private methods
Renamed derive_node_manifest more sensibly
Refactored `update_buckets`
Checked in methods to find bucket by id or key
Added helper methods to locate nodes/replica by constituent bucket/key
Helper method to locate  bucket from constituent key/id
Checked in spec for Config.get
Checked in method to choose a node at random
Quick method to shift a bucket onto the head until we can no longer find any mode nodes in that bucket
Added in methods to fetch vnode/node manifest info
Respecced Artifact.Hash
Import Enum.at into local namespace
Introduced update_nodes method
Introduced finders for atoms of Artifact
Helper method to choose bucket randomly