Merge pull request #2 from soult/master

Documentation for data blocks is missing the compressedSize field
Unauthorized access to aws public dataset bucket was added

Signed-off-by: keiw <keiw@kookoo.org>
Merge pull request #4 from keiw/noauth-s3-access

Unauthorized access to aws public dataset bucket
Fixed spelling mistake
fixed typos and old imports in local read script
remote_read: Make string formatting to work with Python <= 2.6