ooici/coi-services — pull request #279 by lukecampbell (2012-09-18 16:53:19+00:00)
Title: Luke: exchange_manager idempotency

Alters create_exchange_point to be idempotent.
Alters declare_exchange_name to be idempotent.

There was an issue where all subsequent calls to create an exchange name
or exchange_point created new resources. Altering the methods to be
idempotent prevents duplicate resources and provides does not change the
interface perviously used.