Create keyspace working.
REST createKeyspace working.
Renaming REST handlers to better align with the operations.
Drop keyspace (should work once the operation handler is implemented)
Moved handleRequestAsync to the superclass IntraHandlerRest.
Now, each handler implements a function for each HTTP method.
Merge pull request #155 from boneill42/virgil-rest-handler

Added HTTP method specific functions, moving handleRequestAsync to super class.