Merge pull request php-opencloud#125 from samuel4x4/patch-1

Endpoint model implements Retrievable interface

QuotaSet for blockstorage v2

Merge pull request php-opencloud#123 from samuel4x4/patch-1

Add support for creating policies

Merge pull request php-opencloud#118 from php-opencloud/bug-role-assi…

…gnents

Fix bug list role assignments returns empty

Project quota sets

- List Hypervisors, retrieve hypervisor statistics.

- Created fixed IP network port
- Fix bug in retrieving network port
- Update doc

Merge pull request php-opencloud#88 from haphan/os-console

[rfr] Get console vnc/serial/rdp/spice methods

Merge pull request php-opencloud#75 from haphan/server-action

[rfr] Server action

Merge pull request php-opencloud#63 from haphan/guzzle-opts

[wip] Guzzle request options

Merge pull request php-opencloud#49 from php-opencloud/refactor

add layer-3 integration tests; add fixes