adding todos to stubbed tests
adding more todos around stubbed tests
moving node sorter to ring file
more stubbed test files
adding stubbed node move and remove methods to cluster
adding stubbed query methods and test files
adding timeout arg to cluster query methods
adding return values to node query methods
making mocknode descend from basenode
fixing typo
 adding response channels to mock node
fixing arg docs
renaming mock query response
modifying datacenter get nodes to return a map, not an array
adding additional consistency levels
renaming GetNodesForKey to GetLocalNodesForKey
adding method to get a map of nodes for a key
implementing cluster read
adding mock store
moving node mocks into their own file