JCLOUDS-40 unasync Fallback.
JCLOUDS-641 fix return code for deleteIfEmpty
Things in labs shouldn't live long enough to be deprecated.
JCLOUDS-641 copy/paste error completely screwed blobstore tests.
JCLOUDS-641 etag is content-md5 in swift.
JCLOUDS-641 swift is not immediately consistent.
Swift is now out of labs.