GitLab

Closes grnet/kamaki#96

Fixes #24

Refs: #4059

Also, adjust corresponding unit and functional tests

Refs: #3964
(cherry picked from commit c088076b)

Refs: #3964

Refs: #3780

Refs: #3756 #3732

 - Add optional output for file methods: mkdir, touch, create, move, create,
    copy, move, append, delete, purge, info, meta, upload
 - Transliterate permissions and metadata methods to apear as get/set/delete
    command subgroups
    e.g. kamaki file metadata set ...
    instead of
    kamaki file setmeta
- Add method create_container to pithos client, add unit and functional tests

Refs: #3608

The download_to_string method downloads a remote object from pithos into a
string, which is then returned.

Also, implemented unit and functional tests. Changelog is updated

Refs: #3608

Refs: 3707

Methods affected:
    upload_object
    upload_object_unchunked
    upload_object_by_manifestation

unittests modified accordingly

Refs: #3656

kamaki file quota --> only for account
kamaki file quota <container> --> kamaki file containerlimit get [container]

Support #3541

Also, do not allow user to set account quota

This affects the cli:
- remove the quotaholder commands set
- remove the commissioning system (automatic command retrieval)

This affevts the clients:
- remove the quotaholder client
- remove the clients commissioning system

Save the ordereddict backport to clients.utils (still useful)

Update documentation and setup

The if-none-match header option with '*' is used in that case.
This is exposed as 'if_not_exist' in PithosClient.upload_object

Feature #3574

A boring file is a file with at least two same blocks
Kamaki fails to download more than 1 same blocks, therefore the downloaded
file is corrupted
This test fixes the bug

Merge everything to kamaki.clients

Remove multiple hierarchies of connection classes (== abandon support for
    alternative connection methods, e.g. for requests from pypi)

New connection classes are
- RequestManager
- ResponseManager
Semantics:
    RequestManager constructor commits a request without performing it
      but it performs all sanity checks for url, path, method and params
    RequestManager.perform will perform the commited request, if called
    ResponseManager constructor needs a RequestManager instance
    ResponseManager.(various properties)
        request is pooled from a ContextManagerPool (objpool) when needed.
        Results are cached and used as long as the ResponseManager instance
        is alive

Remove KamakiConnection/ResponseErrors, use ClientError wrapers for everything

Remove the connection livetest

TODO: Adjust unittests

Naming convention:

Actual functionality:

In package kamaki.clients.pkg there is class C containing a method M
Test it in a package kamaki.clients.pkg.test, with a class C + a method test_M
Command line run:
    python ${kamaki}/kamaki/clients/pkg/test.py C M
or
    python ${kamaki}/kamaki/clients/test.py C M

In package kamaki.clients there is a module mod containing a method M
Test it in a package kamaki.clients.mod, with a class Mod + a method test_M
Command line run:
    python ${kamaki}/kamaki/clients/mod/test.py Mod M
or
    python ${kamaki}/kamaki/clients/test.py Mod M