Removes an account stat from the object upload path.
This stat fails when user is not account admin even
though the user may have container ACL permission to
write objects.
Reduces the severity of the CLI output message when
upload fails to create the given container (this is
not an error since the container may exist - the user
just does not have permission to PUT or POST the
container).
Changes the 'swift upload' exit return code from 1 to
0 if container PUT fails but object PUT succeeds.
For segment uploads, makes the attempt to create the
segment container conditional on it not being the same
as the manifest container. This avoids an unnecessary
container PUT.
Fixes another bug that became apparent: with segmented
upload a container HEAD may be attempted to determine
the policy to be used for the segment container. When
this failed the result dict has headers=None which was
causing an exception in the shell result handler.
Add unit tests for object upload/download and container
list with --os-storage-url option.
Closes-Bug: #1371650
Change-Id: If1f8a02ee7459ea2158ffa6e958f67d299ec529e
9593d4b58a