akey = AccessKey + '::' + VirtualCacheName

[Marc]

CloudCache needs to support multiple virtual caches per account. Use
case: used for multiple projects, or multiple caches on one project
(e.g. dev/test/production). Users need to be able to flush one
without flushing them all.

We can do this without changing the API by defining the "akey" that is
currently passed in via the headers to be the contactenation of their
real AccessKey + '::' + VirtualCacheName . This approach makes it a
no-op on both sides of the API, just convention. Using akey=AccessKey
will also work fine of course.

For users' bookkeeping needs, we'll provide a /mycaches to list the
names of virtual caches and perhaps later the ability to copy from one
cache to another.

Cheers,


m