GitLab

So far tested in astakos only

quota returns value in units (KiB, MiB, etc)
new argument -b, --bytes to return value in bytes
setquota can accept a unit string
    setquota 2.3GB

In cli.utils: new method ask_user prompts for permission
In cli.commands.pithos_cli: store_delete/purge ask for permission
    they also feature a yes flag argument to avoid prompting

progress check in upload: don't let progress bar raise exceptions

was: progress bar advances if thread is initialized. In case of thread
failures, progress bar was re-initialized for a next round of uploads

now: if a block is uploaded, progress bad advances. There is one upload bar
per upload session

Manifest is kept for compatibility with OOS Storage

Check if it is applied everywhire + minor improvements

copy/move cont:path path2
   will move all <obj> prefixed with path, as path2<obj>
   or as path2 if path corresponds to just one whole object
copy/move cont:path cont2:
   will move all <obj> prefixed with path to container cont2
copy/move cont:path [cont2:]path2 --exact-match
   will move at most one <obj> as a new object named path2,
   provided path corresponds to a whole object path
copy/move cont:path [cont2:]path2 --replace
   will move all <obj> prefixed with path, replacing path with path2

move cont:path path2
   will move all <obj> prefixed with path, as path2<obj>
move cont:path cont2:
   will move all <obj> prefixed with path to container cont2
move cont:path [cont2:]path2 --exact-match
   will move at most one <obj> as a new object named path2
move cont:path [cont2:]path2 --replace
   will move all <obj> prefixed with path, replacing prefix with path2

copy cont:path path2
    will copy all files prefixed with path, as path2path
copy cont:path cont2:
    will copy all files prefixed with path to container cont2
copy cont:path [cont2:]path2 --exact-match
    will copy at most one object as a new object named path2
copy cont:path [cont2:]path2 --replace
    will copy all objs prefixed with path, replacing prefix with path2

Conflicts:
	kamaki/clients/__init__.py
	kamaki/clients/pithos.py