Moved WalrusExceptionProxy.groovy to the provider package, added a bunch of license headers in code and remove the S3ObjectOperations.groovy file from storage.msgs.s3 since it was not used, was wrong, and caused name confusion
Merge branch 'team/storage/riakcs-techpreview' of git.eucalyptus-systems.com:eucalyptus into team/storage/riakcs-techpreview