Remove Azure ETag hack
Remove Azure ETag hack

Previously jclouds required ETag to be a hex-encoded Content-MD5.

kahing/s3proxy,bouncestorage/s3proxy,andrewgaul/s3proxy,bouncestorage/s3proxy,flandr/s3proxy,kahing/s3proxy,andrewgaul/s3proxy,flandr/s3proxy,timuralp/s3proxy,timuralp/s3proxy